Poison.ParseError at GET /auth/linkedin/callback Unexpected token at position 0: <

[mrinterestfull]

Hello,
Any idea what the issue might be or how to trouble shoot it. The error is not useful and I don't know how to get the real msg to see what the problem might be.

lib/poison/parser.ex
end

Errors

defp syntax_error(<token::utf8> <> , pos) do
raise %ParseError{pos: pos, value: <token::utf8>}
end
defp syntax_error(, pos) do
raise %ParseError{pos: pos, value: ""}
end
Poison.Parser.value/3

This error appears after I did
mix deps.unlock --all
mix deps.update --all

certifi 2.8.0
cowboy 2.9.0
cowboy_telemetry 0.3.1
cowlib 2.11.0
exquisite 0.1.10
file_system 0.2.10
floki 0.30.1
gettext 0.18.2
hackney 1.18.0
html_entities 0.5.2
httpoison 0.13.0
idna 6.1.1
jason 1.2.2
metrics 1.0.1
mime 2.0.1
mimerl 1.2.0
oauth2 0.7.0
parse_trans 3.3.1
phoenix 1.5.13
phoenix_html 2.14.3
phoenix_live_dashboard 0.4.0
phoenix_live_reload 1.3.3
phoenix_live_view 0.15.7
phoenix_pubsub 2.0.0
plug 1.12.1
plug_cowboy 2.5.2
plug_crypto 1.2.2
poison 4.0.1
ranch 1.8.0
ssl_verify_fun 1.1.6
telemetry 0.4.3
telemetry_metrics 0.6.1
telemetry_poller 0.5.1
ueberauth 0.6.3
ueberauth_linkedin 0.3.2
unicode_util_compat 0.7.0

Reading online it looks like the error is cause when a response is not json, which means the html or something else.
I've went through the browser developer tools, and I see a

/oauth/v2/login-success?app_id=1231232&auth_type=AC&flow={"authorizationType":"OAUTH2_AUTHORIZATION_CODE","redirectUri":"http://localhost:4000/auth/linkedin/callback","currentStage":"LOGIN_SUCCESS","currentSubStage":0,"authFlowName":"generic-permission-list","appId":125808426,"scope":"r_liteprofile r_emailaddress","creationTime":1633055190237,"state":"q123I9DUjDo123DUCZiqTMH5fg=="}