Handle bot not in requested room

[moan0s]

Oct 04 16:04:40 X-Wing matrix-nginx-proxy[1339632]: 172.18.0.1 - - [04/Oct/2022:16:04:40 +0000] "GET /_matrix/client/v3/rooms/%21ujxjgvoAxxHVXSdlev%3Aactiv
ism.international/state/m.room.encryption/ HTTP/1.1" 403 158 "-" "Python/3.9 aiohttp/3.8.1" "-"                                                            
Oct 04 16:04:40 X-Wing matrix-bot-maubot[1341237]: [2022-10-04 16:04:40,985] [ERROR@aiohttp.server] Error handling request                                 
Oct 04 16:04:40 X-Wing matrix-bot-maubot[1341237]: Traceback (most recent call last):                                                                      
Oct 04 16:04:40 X-Wing matrix-bot-maubot[1341237]:   File "/usr/lib/python3.9/site-packages/aiohttp/web_protocol.py", line 435, in _handle_request         
Oct 04 16:04:40 X-Wing matrix-bot-maubot[1341237]:     resp = await request_handler(request)                                                               
Oct 04 16:04:40 X-Wing matrix-bot-maubot[1341237]:   File "/usr/lib/python3.9/site-packages/aiohttp/web_app.py", line 504, in _handle                      Oct 04 16:04:40 X-Wing matrix-bot-maubot[1341237]:     resp = await handler(request)                                                                       Oct 04 16:04:40 X-Wing matrix-bot-maubot[1341237]:   File "/usr/lib/python3.9/site-packages/aiohttp/web_middlewares.py", line 117, in impl                 
Oct 04 16:04:40 X-Wing matrix-bot-maubot[1341237]:     return await handler(request)                                                                       Oct 04 16:04:40 X-Wing matrix-bot-maubot[1341237]:   File "/opt/maubot/maubot/server.py", line 119, in frontend_404_middleware                             
Oct 04 16:04:40 X-Wing matrix-bot-maubot[1341237]:     return await handler(request)                                                                       Oct 04 16:04:40 X-Wing matrix-bot-maubot[1341237]:   File "/opt/maubot/maubot/server.py", line 69, in handle_plugin_path                                   
Oct 04 16:04:40 X-Wing matrix-bot-maubot[1341237]:     return await app.handle(request)                                                                    Oct 04 16:04:40 X-Wing matrix-bot-maubot[1341237]:   File "/opt/maubot/maubot/plugin_server.py", line 57, in handle                                        
Oct 04 16:04:40 X-Wing matrix-bot-maubot[1341237]:     resp = await handler(request)                                                                       Oct 04 16:04:40 X-Wing matrix-bot-maubot[1341237]:   File "/data/plugins/de.hyteck.alertbot-v1.0.0.mbp/alertbot.py", line 177, in webhook_room             Oct 04 16:04:40 X-Wing matrix-bot-maubot[1341237]:     await self.send_alert(req, room=room_id)                                                            
Oct 04 16:04:40 X-Wing matrix-bot-maubot[1341237]:   File "/data/plugins/de.hyteck.alertbot-v1.0.0.mbp/alertbot.py", line 172, in send_alert               Oct 04 16:04:40 X-Wing matrix-bot-maubot[1341237]:     await self.client.send_markdown(room, message)                                                      Oct 04 16:04:40 X-Wing matrix-bot-maubot[1341237]:   File "/opt/maubot/maubot/matrix.py", line 166, in send_markdown                                       
Oct 04 16:04:40 X-Wing matrix-bot-maubot[1341237]:     return await self.send_message(room_id, content, **kwargs)                                          Oct 04 16:04:40 X-Wing matrix-bot-maubot[1341237]:   File "/usr/lib/python3.9/site-packages/mautrix/client/encryption_manager.py", line 157, in send_messag
e_event                                                                                                                                                    Oct 04 16:04:40 X-Wing matrix-bot-maubot[1341237]:     await self.get_state_event(room_id, EventType.ROOM_ENCRYPTION)                                      
Oct 04 16:04:40 X-Wing matrix-bot-maubot[1341237]:   File "/usr/lib/python3.9/site-packages/mautrix/client/store_updater.py", line 162, in get_state_event Oct 04 16:04:40 X-Wing matrix-bot-maubot[1341237]:     event = await super().get_state_event(room_id, event_type, state_key)                               Oct 04 16:04:40 X-Wing matrix-bot-maubot[1341237]:   File "/usr/lib/python3.9/site-packages/mautrix/client/api/events.py", line 149, in get_state_event    
Oct 04 16:04:40 X-Wing matrix-bot-maubot[1341237]:     content = await self.api.request(                                                                   Oct 04 16:04:40 X-Wing matrix-bot-maubot[1341237]:   File "/usr/lib/python3.9/site-packages/mautrix/api.py", line 383, in request                          Oct 04 16:04:40 X-Wing matrix-bot-maubot[1341237]:     return await self._send(method, full_url, req_content, query_params, headers or {})                 
Oct 04 16:04:40 X-Wing matrix-bot-maubot[1341237]:   File "/usr/lib/python3.9/site-packages/mautrix/api.py", line 258, in _send                            Oct 04 16:04:40 X-Wing matrix-bot-maubot[1341237]:     raise make_request_error(                                                                           Oct 04 16:04:40 X-Wing matrix-bot-maubot[1341237]: mautrix.errors.request.MForbidden: User @alertbot:hyteck.de not in room !ujxjgvoAxxHVXSdlev:activism.int
ernational, and room previews are disabled