Nothing happens when "add playlist"

[mappers653]

1. Press add play list
2. list gets added to monitored and list gets added with tags to jellyfin
3. tracks gets download, playlist all in green but still no tracks in the playlist in Jellyfin
4. green button "add to my jellyfin" green despite clicking on it and error in log

   jellyplist           | [2024-11-24 16:18:23,383] ERROR in app: Exception on /addplaylist [POST]
   jellyplist           | Traceback (most recent call last):
   jellyplist           |   File "/usr/local/lib/python3.12/site-packages/flask/app.py", line 1511, in wsgi_app
   jellyplist           |     response = self.full_dispatch_request()
   jellyplist           |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   jellyplist           |   File "/usr/local/lib/python3.12/site-packages/flask/app.py", line 920, in full_dispatch_request
   jellyplist           |     return self.finalize_request(rv)
   jellyplist           |            ^^^^^^^^^^^^^^^^^^^^^^^^^
   jellyplist           |   File "/usr/local/lib/python3.12/site-packages/flask/app.py", line 939, in finalize_request
   jellyplist           |     response = self.make_response(rv)
   jellyplist           |                ^^^^^^^^^^^^^^^^^^^^^^
   jellyplist           |   File "/usr/local/lib/python3.12/site-packages/flask/app.py", line 1212, in make_response
   jellyplist           |     raise TypeError(
   jellyplist           | TypeError: The view function for 'add_playlist' did not return a valid response. The function either returned None or ended without a return statement.

same behavior with additional added playlist, only worked properly once on the first try

[vergemarie]

same error here