Unable to convert

[pstrg]

The following book, acquired from Amazon, could not be converted:
https://www.amazon.com.br/Nietzsche-mulheres-Figuras-imagens-femininos-ebook/dp/B09T3RDYWM/ref=sr_1_1

Debug mode output:

`
calibre 7.4 embedded-python: True
Windows-10-10.0.19045-SP0 Windows ('64bit', 'WindowsPE')
('Windows', '10', '10.0.19045')
Python 3.11.5
Windows: ('10', '10.0.19045', 'SP0', 'Multiprocessor Free')
Interface language: None
Successfully initialized third party plugins: Gather KFX-ZIP (from KFX Input) (2, 8, 1) && DeDRM (10, 0, 3) && Package KFX (from KFX Input) (2, 8, 1) && KFX metadata reader (from KFX Input) (2, 8, 1) && From KFX (2, 8, 1) && KFX Input (2, 8, 1) && Obok DeDRM (10, 0, 3)
QPA platform: windows
devicePixelRatio: 1.0
logicalDpi: 96.0 x 96.0
physicalDpi: 81.55183946488295 x 81.64285714285714
ApplicationPaletteChange event ignored
Using calibre Qt style: True
ApplicationPaletteChange event received
[0.00] Starting up...
[0.00] Showing splash screen...
[0.16] splash screen shown
[0.16] Initializing db...
[0.66] db initialized
[0.66] Constructing main UI...
DEBUG: 0.0 obok::utilities.py - loading translations
DEBUG: 0.0 obok::dialogs.py - loading translations
DEBUG: 0.0 obok::config.py - loading translations
DEBUG: 0.0 obok::action_err.py - loading translations
qt.gui.imageio: libpng warning: iCCP: known incorrect sRGB profile
[1.81] GUI main window shown
[1.86] main UI initialized...
[1.86] Hiding splash screen
[2.14] splash screen hidden
[2.14] Started up in 2.14 seconds with 360 books
stdout+stderr from file dialog helper: [b'', b'']
piped data from file dialog helper: [b']\x0e\xd0\xbe\x05\x17\xd4c\xea\xe5\x87\x07,qu\xb6\xc6(\x99P\x1e\x0f"\x90/P\xa6O\xdf\xee\xa4\xc9', b'C:\Users\Paulo\Documents\My Kindle Content\B09T3RDYWM_EBOK\B09T3RDYWM_EBOK.azw']
Gather KFX-ZIP (from KFX Input) 2.8.1: Importing C:\Users\Paulo\Documents\My Kindle Content\B09T3RDYWM_EBOK\B09T3RDYWM_EBOK.azw
Gather KFX-ZIP (from KFX Input): Gathered 4 file(s) as C:\Users\Paulo\AppData\Local\Temp\calibre_s4z24_04\oea7avh4.kfx-zip
DeDRM v10.0.3: Trying to decrypt oea7avh4.kfx-zip
Using Library AlfCrypto DLL/DYLIB/SO
Decrypting KFX-ZIP ebook: oea7avh4
Found 1 keys to try after 0.1 seconds
Decrypting KFX DRM voucher: amzn1.drm-voucher.v1.3a90cca2-43af-4227-a571-64a942097ac0.voucher
Traceback (most recent call last):
File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\kfxdedrm.py", line 105, in decrypt_voucher
File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\ion.py", line 886, in decryptvoucher
File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\ion.py", line 762, in pkcs7unpad
File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\ion.py", line 102, in _assert
Exception: Incorrect padding - Wrong key
Traceback (most recent call last):
File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\kfxdedrm.py", line 105, in decrypt_voucher
File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\ion.py", line 886, in decryptvoucher
File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\ion.py", line 762, in pkcs7unpad
File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\ion.py", line 102, in _assert
Exception: Incorrect padding - Wrong key
DeDRM v10.0.3: Failed to decrypt with error: Failed to decrypt KFX DRM voucher with any key
DeDRM v10.0.3: Looking for new default Kindle Key after 0.1 seconds
searching for kinfoFiles in C:\Users\Paulo\AppData\Local
Found K4PC 1.25+ kinf2018 file: C:\Users\Paulo\AppData\Local\Amazon\Kindle\storage.kinf2018
Decrypted key file using IDString '3534171595' and UserName 'Paulo'
DeDRM v10.0.3: Found 1 new key
Decrypting KFX-ZIP ebook: oea7avh4
Got DSN key from database key_0
Found 1 keys to try after 0.2 seconds
Decrypting KFX DRM voucher: amzn1.drm-voucher.v1.3a90cca2-43af-4227-a571-64a942097ac0.voucher
Traceback (most recent call last):
File "calibre_plugins.dedrm.init", line 957, in KindleMobiDecrypt
File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\k4mobidedrm.py", line 261, in GetDecryptedBook
File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\kfxdedrm.py", line 67, in processBook
File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\kfxdedrm.py", line 111, in decrypt_voucher
Exception: Failed to decrypt KFX DRM voucher with any key

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\kfxdedrm.py", line 105, in decrypt_voucher
File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\ion.py", line 886, in decryptvoucher
File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\ion.py", line 762, in pkcs7unpad
File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\ion.py", line 102, in _assert
Exception: Incorrect padding - Wrong key
Traceback (most recent call last):
File "calibre_plugins.dedrm.init", line 957, in KindleMobiDecrypt
File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\k4mobidedrm.py", line 261, in GetDecryptedBook
File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\kfxdedrm.py", line 67, in processBook
File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\kfxdedrm.py", line 111, in decrypt_voucher
Exception: Failed to decrypt KFX DRM voucher with any key

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\kfxdedrm.py", line 105, in decrypt_voucher
File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\ion.py", line 886, in decryptvoucher
File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\ion.py", line 762, in pkcs7unpad
File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\ion.py", line 102, in _assert
Exception: Incorrect padding - Wrong key
Traceback (most recent call last):
File "calibre_plugins.dedrm.init", line 957, in KindleMobiDecrypt
File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\k4mobidedrm.py", line 261, in GetDecryptedBook
File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\kfxdedrm.py", line 67, in processBook
File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\kfxdedrm.py", line 111, in decrypt_voucher
Exception: Failed to decrypt KFX DRM voucher with any key

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "calibre_plugins.dedrm.init", line 991, in KindleMobiDecrypt
File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\k4mobidedrm.py", line 261, in GetDecryptedBook
File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\kfxdedrm.py", line 67, in processBook
File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\kfxdedrm.py", line 111, in decrypt_voucher
Exception: Failed to decrypt KFX DRM voucher with any key
DeDRM v10.0.3: Ultimately failed to decrypt after 0.3 seconds. Read the FAQs at noDRM's repository: https://github.com/noDRM/DeDRM_tools/blob/master/FAQs.md
Running file type plugin DeDRM failed with traceback:
Traceback (most recent call last):
File "calibre_plugins.dedrm.init", line 957, in KindleMobiDecrypt
File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\k4mobidedrm.py", line 261, in GetDecryptedBook
File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\kfxdedrm.py", line 67, in processBook
File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\kfxdedrm.py", line 111, in decrypt_voucher
Exception: Failed to decrypt KFX DRM voucher with any key

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "calibre\customize\ui.py", line 187, in _run_filetype_plugins
File "calibre_plugins.dedrm.init", line 1056, in run
File "calibre_plugins.dedrm.init", line 1007, in KindleMobiDecrypt
calibre_plugins.dedrm.DeDRMError: DeDRM v10.0.3: Ultimately failed to decrypt after 0.3 seconds. Read the FAQs at noDRM's repository: https://github.com/noDRM/DeDRM_tools/blob/master/FAQs.md
Package KFX (from KFX Input) 2.8.1: Packaging C:\Users\Paulo\AppData\Local\Temp\calibre_s4z24_04\oea7avh4.kfx-zip
Processing container: B09T3RDYWM_EBOK.azw
Running file type plugin Package KFX (from KFX Input) failed with traceback:
Traceback (most recent call last):
File "calibre\customize\ui.py", line 187, in _run_filetype_plugins
File "calibre_plugins.kfx_input.package_filetype", line 23, in run
File "calibre_plugins.kfx_input.package_filetype", line 34, in package_kfx
File "calibre_plugins.kfx_input.kfxlib.yj_book", line 79, in convert_to_single_kfx
File "calibre_plugins.kfx_input.kfxlib.yj_book", line 212, in decode_book
File "calibre_plugins.kfx_input.kfxlib.yj_book", line 321, in get_container
calibre_plugins.kfx_input.kfxlib.utilities.KFXDRMError: Book container B09T3RDYWM_EBOK.azw has DRM and cannot be converted
KFX metadata reader (from KFX Input) activated for C:\Users\Paulo\AppData\Local\Temp\calibre_s4z24_04\k2axrsyi_add_books\0\B09T3RDYWM_EBOK.kfx-zip
Added Nietzsche e as mulheres to db in: 1.8
Added 1 books in 2.7 seconds
Worker Launch took: 0.00 seconds
Job: 0 Convert book 1 of 1 (Nietzsche e as mulheres) finished
Convert book 1 of 1 (Nietzsche e as mulheres)
DeDRM v10.0.3: Trying to decrypt rjmix802.kfx-zip
Using Library AlfCrypto DLL/DYLIB/SO
Decrypting KFX-ZIP ebook: rjmix802
Found 1 keys to try after 0.1 seconds
Decrypting KFX DRM voucher: amzn1.drm-voucher.v1.3a90cca2-43af-4227-a571-64a942097ac0.voucher
Traceback (most recent call last):
File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\kfxdedrm.py", line 105, in decrypt_voucher
File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\ion.py", line 886, in decryptvoucher
File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\ion.py", line 762, in pkcs7unpad
File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\ion.py", line 102, in _assert
Exception: Incorrect padding - Wrong key
Traceback (most recent call last):
File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\kfxdedrm.py", line 105, in decrypt_voucher
File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\ion.py", line 886, in decryptvoucher
File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\ion.py", line 762, in pkcs7unpad
File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\ion.py", line 102, in _assert
Exception: Incorrect padding - Wrong key
DeDRM v10.0.3: Failed to decrypt with error: Failed to decrypt KFX DRM voucher with any key
DeDRM v10.0.3: Looking for new default Kindle Key after 0.1 seconds
searching for kinfoFiles in C:\Users\Paulo\AppData\Local
Found K4PC 1.25+ kinf2018 file: C:\Users\Paulo\AppData\Local\Amazon\Kindle\storage.kinf2018
Decrypted key file using IDString '3534171595' and UserName 'Paulo'
DeDRM v10.0.3: Found 1 new key
Decrypting KFX-ZIP ebook: rjmix802
Got DSN key from database key_0
Found 1 keys to try after 0.2 seconds
Decrypting KFX DRM voucher: amzn1.drm-voucher.v1.3a90cca2-43af-4227-a571-64a942097ac0.voucher
Traceback (most recent call last):
File "calibre_plugins.dedrm.init", line 957, in KindleMobiDecrypt
File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\k4mobidedrm.py", line 261, in GetDecryptedBook
File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\kfxdedrm.py", line 67, in processBook
File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\kfxdedrm.py", line 111, in decrypt_voucher
Exception: Failed to decrypt KFX DRM voucher with any key

    During handling of the above exception, another exception occurred:

    Traceback (most recent call last):
      File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\kfxdedrm.py", line 105, in decrypt_voucher
      File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\ion.py", line 886, in decryptvoucher
      File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\ion.py", line 762, in pkcs7unpad
      File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\ion.py", line 102, in _assert
    Exception: Incorrect padding - Wrong key
    Traceback (most recent call last):
      File "calibre_plugins.dedrm.__init__", line 957, in KindleMobiDecrypt
      File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\k4mobidedrm.py", line 261, in GetDecryptedBook
      File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\kfxdedrm.py", line 67, in processBook
      File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\kfxdedrm.py", line 111, in decrypt_voucher
    Exception: Failed to decrypt KFX DRM voucher with any key

    During handling of the above exception, another exception occurred:

    Traceback (most recent call last):
      File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\kfxdedrm.py", line 105, in decrypt_voucher
      File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\ion.py", line 886, in decryptvoucher
      File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\ion.py", line 762, in pkcs7unpad
      File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\ion.py", line 102, in _assert
    Exception: Incorrect padding - Wrong key
    Traceback (most recent call last):
      File "calibre_plugins.dedrm.__init__", line 957, in KindleMobiDecrypt
      File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\k4mobidedrm.py", line 261, in GetDecryptedBook
      File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\kfxdedrm.py", line 67, in processBook
      File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\kfxdedrm.py", line 111, in decrypt_voucher
    Exception: Failed to decrypt KFX DRM voucher with any key

    During handling of the above exception, another exception occurred:

    Traceback (most recent call last):
      File "calibre_plugins.dedrm.__init__", line 991, in KindleMobiDecrypt
      File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\k4mobidedrm.py", line 261, in GetDecryptedBook
      File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\kfxdedrm.py", line 67, in processBook
      File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\kfxdedrm.py", line 111, in decrypt_voucher
    Exception: Failed to decrypt KFX DRM voucher with any key
    DeDRM v10.0.3: Ultimately failed to decrypt after 0.2 seconds. Read the FAQs at noDRM's repository: https://github.com/noDRM/DeDRM_tools/blob/master/FAQs.md
    Running file type plugin DeDRM failed with traceback:
    Traceback (most recent call last):
      File "calibre_plugins.dedrm.__init__", line 957, in KindleMobiDecrypt
      File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\k4mobidedrm.py", line 261, in GetDecryptedBook
      File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\kfxdedrm.py", line 67, in processBook
      File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\kfxdedrm.py", line 111, in decrypt_voucher
    Exception: Failed to decrypt KFX DRM voucher with any key

    During handling of the above exception, another exception occurred:

    Traceback (most recent call last):
      File "calibre\customize\ui.py", line 187, in _run_filetype_plugins
      File "calibre_plugins.dedrm.__init__", line 1056, in run
      File "calibre_plugins.dedrm.__init__", line 1007, in KindleMobiDecrypt
    calibre_plugins.dedrm.DeDRMError: DeDRM v10.0.3: Ultimately failed to decrypt after 0.2 seconds. Read the FAQs at noDRM's repository: https://github.com/noDRM/DeDRM_tools/blob/master/FAQs.md
    Conversion options changed from defaults:
      cover: 'C:\\Users\\Paulo\\AppData\\Local\\Temp\\calibre_s4z24_04\\x_cshmlf.jpeg'
      verbose: 2
      output_profile: 'kindle_pw3'
      read_metadata_from_opf: 'C:\\Users\\Paulo\\AppData\\Local\\Temp\\calibre_s4z24_04\\rsqdxg_o.opf'
    Resolved conversion options
    calibre version: 7.4.0
    {'allow_conversion_with_errors': False,
     'asciiize': False,
     'author_sort': None,
     'authors': None,
     'base_font_size': 0.0,
     'book_producer': None,
     'change_justification': 'original',
     'chapter': "//*[((name()='h1' or name()='h2') and re:test(., "
                "'\\s*((chapter|book|section|part)\\s+)|((prolog|prologue|epilogue)(\\s+|$))', "
                "'i')) or @class = 'chapter']",
     'chapter_mark': 'pagebreak',
     'comments': None,
     'cover': 'C:\\Users\\Paulo\\AppData\\Local\\Temp\\calibre_s4z24_04\\x_cshmlf.jpeg',
     'debug_pipeline': None,
     'dehyphenate': True,
     'delete_blank_paragraphs': True,
     'disable_font_rescaling': False,
     'dont_split_on_page_breaks': False,
     'duplicate_links_in_toc': False,
     'embed_all_fonts': False,
     'embed_font_family': None,
     'enable_heuristics': False,
     'epub_flatten': False,
     'epub_inline_toc': False,
     'epub_max_image_size': 'none',
     'epub_toc_at_end': False,
     'epub_version': '2',
     'expand_css': False,
     'extra_css': None,
     'extract_to': None,
     'filter_css': '',
     'fix_indents': True,
     'flow_size': 260,
     'font_size_mapping': None,
     'format_scene_breaks': True,
     'html_unwrap_factor': 0.4,
     'input_encoding': None,
     'input_profile': <calibre.customize.profiles.InputProfile object at 0x0000028C708004D0>,
     'insert_blank_line': False,
     'insert_blank_line_size': 0.5,
     'insert_metadata': False,
     'isbn': None,
     'italicize_common_cases': True,
     'keep_ligatures': False,
     'language': None,
     'level1_toc': None,
     'level2_toc': None,
     'level3_toc': None,
     'line_height': 0.0,
     'linearize_tables': False,
     'margin_bottom': 5.0,
     'margin_left': 5.0,
     'margin_right': 5.0,
     'margin_top': 5.0,
     'markup_chapter_headings': True,
     'max_toc_links': 50,
     'minimum_line_height': 120.0,
     'no_chapters_in_toc': False,
     'no_default_epub_cover': False,
     'no_inline_navbars': False,
     'no_svg_cover': False,
     'output_profile': <calibre.customize.profiles.KindlePaperWhite3Output object at 0x0000028C7080F550>,
     'page_breaks_before': '/',
     'prefer_metadata_cover': False,
     'preserve_cover_aspect_ratio': False,
     'pretty_print': True,
     'pubdate': None,
     'publisher': None,
     'rating': None,
     'read_metadata_from_opf': 'C:\\Users\\Paulo\\AppData\\Local\\Temp\\calibre_s4z24_04\\rsqdxg_o.opf',
     'remove_fake_margins': True,
     'remove_first_image': False,
     'remove_paragraph_spacing': False,
     'remove_paragraph_spacing_indent_size': 1.5,
     'renumber_headings': True,
     'replace_scene_breaks': '',
     'search_replace': '[]',
     'series': None,
     'series_index': None,
     'smarten_punctuation': False,
     'sr1_replace': None,
     'sr1_search': None,
     'sr2_replace': None,
     'sr2_search': None,
     'sr3_replace': None,
     'sr3_search': None,
     'start_reading_at': None,
     'subset_embedded_fonts': False,
     'tags': None,
     'timestamp': None,
     'title': None,
     'title_sort': None,
     'toc_filter': None,
     'toc_threshold': 6,
     'toc_title': None,
     'transform_css_rules': '[]',
     'transform_html_rules': '[]',
     'unsmarten_punctuation': False,
     'unwrap_lines': True,
     'use_auto_toc': False,
     'verbose': 2}
    DeDRM v10.0.3: Trying to decrypt rjmix802.kfx-zip
    Decrypting KFX-ZIP ebook: rjmix802
    Found 1 keys to try after 0.0 seconds
    Decrypting KFX DRM voucher: amzn1.drm-voucher.v1.3a90cca2-43af-4227-a571-64a942097ac0.voucher
    Traceback (most recent call last):
      File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\kfxdedrm.py", line 105, in decrypt_voucher
      File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\ion.py", line 886, in decryptvoucher
      File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\ion.py", line 762, in pkcs7unpad
      File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\ion.py", line 102, in _assert
    Exception: Incorrect padding - Wrong key
    Traceback (most recent call last):
      File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\kfxdedrm.py", line 105, in decrypt_voucher
      File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\ion.py", line 886, in decryptvoucher
      File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\ion.py", line 762, in pkcs7unpad
      File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\ion.py", line 102, in _assert
    Exception: Incorrect padding - Wrong key
    DeDRM v10.0.3: Failed to decrypt with error: Failed to decrypt KFX DRM voucher with any key
    DeDRM v10.0.3: Looking for new default Kindle Key after 0.0 seconds
    searching for kinfoFiles in C:\Users\Paulo\AppData\Local
    Found K4PC 1.25+ kinf2018 file: C:\Users\Paulo\AppData\Local\Amazon\Kindle\storage\.kinf2018
    Decrypted key file using IDString '3534171595' and UserName 'Paulo'
    DeDRM v10.0.3: Found 1 new key
    Decrypting KFX-ZIP ebook: rjmix802
    Got DSN key from database key_0
    Found 1 keys to try after 0.2 seconds
    Decrypting KFX DRM voucher: amzn1.drm-voucher.v1.3a90cca2-43af-4227-a571-64a942097ac0.voucher
    Traceback (most recent call last):
      File "calibre_plugins.dedrm.__init__", line 957, in KindleMobiDecrypt
      File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\k4mobidedrm.py", line 261, in GetDecryptedBook
      File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\kfxdedrm.py", line 67, in processBook
      File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\kfxdedrm.py", line 111, in decrypt_voucher
    Exception: Failed to decrypt KFX DRM voucher with any key

    During handling of the above exception, another exception occurred:

    Traceback (most recent call last):
      File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\kfxdedrm.py", line 105, in decrypt_voucher
      File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\ion.py", line 886, in decryptvoucher
      File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\ion.py", line 762, in pkcs7unpad
      File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\ion.py", line 102, in _assert
    Exception: Incorrect padding - Wrong key
    Traceback (most recent call last):
      File "calibre_plugins.dedrm.__init__", line 957, in KindleMobiDecrypt
      File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\k4mobidedrm.py", line 261, in GetDecryptedBook
      File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\kfxdedrm.py", line 67, in processBook
      File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\kfxdedrm.py", line 111, in decrypt_voucher
    Exception: Failed to decrypt KFX DRM voucher with any key

    During handling of the above exception, another exception occurred:

    Traceback (most recent call last):
      File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\kfxdedrm.py", line 105, in decrypt_voucher
      File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\ion.py", line 886, in decryptvoucher
      File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\ion.py", line 762, in pkcs7unpad
      File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\ion.py", line 102, in _assert
    Exception: Incorrect padding - Wrong key
    Traceback (most recent call last):
      File "calibre_plugins.dedrm.__init__", line 957, in KindleMobiDecrypt
      File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\k4mobidedrm.py", line 261, in GetDecryptedBook
      File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\kfxdedrm.py", line 67, in processBook
      File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\kfxdedrm.py", line 111, in decrypt_voucher
    Exception: Failed to decrypt KFX DRM voucher with any key

    During handling of the above exception, another exception occurred:

    Traceback (most recent call last):
      File "calibre_plugins.dedrm.__init__", line 991, in KindleMobiDecrypt
      File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\k4mobidedrm.py", line 261, in GetDecryptedBook
      File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\kfxdedrm.py", line 67, in processBook
      File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\kfxdedrm.py", line 111, in decrypt_voucher
    Exception: Failed to decrypt KFX DRM voucher with any key
    DeDRM v10.0.3: Ultimately failed to decrypt after 0.2 seconds. Read the FAQs at noDRM's repository: https://github.com/noDRM/DeDRM_tools/blob/master/FAQs.md
    Running file type plugin DeDRM failed with traceback:
    Traceback (most recent call last):
      File "calibre_plugins.dedrm.__init__", line 957, in KindleMobiDecrypt
      File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\k4mobidedrm.py", line 261, in GetDecryptedBook
      File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\kfxdedrm.py", line 67, in processBook
      File "C:\Users\Paulo\AppData\Roaming\calibre\plugins\DeDRM.zip\kfxdedrm.py", line 111, in decrypt_voucher
    Exception: Failed to decrypt KFX DRM voucher with any key

    During handling of the above exception, another exception occurred:

    Traceback (most recent call last):
      File "calibre\customize\ui.py", line 187, in _run_filetype_plugins
      File "calibre_plugins.dedrm.__init__", line 1056, in run
      File "calibre_plugins.dedrm.__init__", line 1007, in KindleMobiDecrypt
    calibre_plugins.dedrm.DeDRMError: DeDRM v10.0.3: Ultimately failed to decrypt after 0.2 seconds. Read the FAQs at noDRM's repository: https://github.com/noDRM/DeDRM_tools/blob/master/FAQs.md
    InputFormatPlugin: KFX Input running
    on C:\Users\Paulo\AppData\Local\Temp\calibre_s4z24_04\rjmix802.kfx-zip
    Software versions: KFX Input 2.8.1, calibre 7.4, Windows-10-10.0.19045-SP0
    KFX Input plugin help is available at https://www.mobileread.com/forums/showthread.php?t=291290
    Converting C:\Users\Paulo\AppData\Local\Temp\calibre_s4z24_04\rjmix802.kfx-zip
    Processing container: B09T3RDYWM_EBOK.azw
    Traceback (most recent call last):
      File "calibre_plugins.kfx_input.__init__", line 102, in convert
      File "calibre_plugins.kfx_input.kfxlib.yj_book", line 212, in decode_book
      File "calibre_plugins.kfx_input.kfxlib.yj_book", line 321, in get_container
    calibre_plugins.kfx_input.kfxlib.utilities.KFXDRMError: Book container B09T3RDYWM_EBOK.azw has DRM and cannot be converted

    During handling of the above exception, another exception occurred:

    Traceback (most recent call last):
      File "runpy.py", line 198, in _run_module_as_main
      File "runpy.py", line 88, in _run_code
      File "site.py", line 95, in <module>
      File "site.py", line 90, in main
      File "site.py", line 50, in run_entry_point
      File "calibre\utils\ipc\worker.py", line 215, in main
      File "calibre\gui2\convert\gui_conversion.py", line 38, in gui_convert_override
      File "calibre\gui2\convert\gui_conversion.py", line 25, in gui_convert
      File "calibre\ebooks\conversion\plumber.py", line 1108, in run
      File "calibre\customize\conversion.py", line 242, in __call__
      File "calibre_plugins.kfx_input.__init__", line 121, in convert
    calibre.ebooks.DRMError: This book has DRM!

`

[ElleKayEm]

Try DeDRM 10.0.9: https://github.com/noDRM/DeDRM_tools/releases/tag/v10.0.9

[pstrg]

Thank you.
It seems that something may be missing:

`
calibre, version 7.4.0
ERROR: Unhandled exception: InvalidPlugin:The plugin in 'S:\+Software\+Windows\Calibre {53}\DeDRM_tools_10.0.9.zip' is invalid. It does not contain a top-level init.py file

calibre 7.4 embedded-python: True
Windows-10-10.0.19045-SP0 Windows ('64bit', 'WindowsPE')
('Windows', '10', '10.0.19045')
Python 3.11.5
Windows: ('10', '10.0.19045', 'SP0', 'Multiprocessor Free')
Interface language: None
Successfully initialized third party plugins: Gather KFX-ZIP (from KFX Input) (2, 8, 1) && DeDRM (10, 0, 3) && Package KFX (from KFX Input) (2, 8, 1) && KFX metadata reader (from KFX Input) (2, 8, 1) && From KFX (2, 8, 1) && KFX Input (2, 8, 1) && Obok DeDRM (10, 0, 3)
Traceback (most recent call last):
File "calibre\gui2\preferences\plugins.py", line 325, in add_plugin
File "calibre\customize\ui.py", line 513, in add_plugin
File "calibre\customize\ui.py", line 64, in load_plugin
File "calibre\customize\zipplugin.py", line 299, in load
File "calibre\customize\zipplugin.py", line 394, in _locate_code
calibre.customize.InvalidPlugin: The plugin in 'S:\+Software\+Windows\Calibre {53}\DeDRM_tools_10.0.9.zip' is invalid. It does not contain a top-level init.py file

`

[ElleKayEm]

Unzip DeDRM_tools_10.0.9.zip and load DeDRM_plugin.zip into calibre.

[pstrg]

Newer version worked!
Thank you again and compliments.