TypeError: issubclass() arg 1 must be a class

[ygaitonde]

Describe the bug
I'm running the script in the normal fashion: kindle2notion INTEGRATION_KEY DATABASE_ID FILE_LOC.

To Reproduce
kindle2notion INTEGRATION_KEY DATABASE_ID FILE_LOC.

Expected behaviour
The program uploads my clippings to Notion.

Screenshots

Initiating transfer...

Traceback (most recent call last):
  File "/Library/Frameworks/Python.framework/Versions/3.10/bin/kindle2notion", line 33, in <module>
    sys.exit(load_entry_point('kindle2notion==1.0.1', 'console_scripts', 'kindle2notion')())
  File "/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/site-packages/click/core.py", line 1130, in __call__
    return self.main(*args, **kwargs)
  File "/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/site-packages/click/core.py", line 1055, in main
    rv = self.invoke(ctx)
  File "/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/site-packages/click/core.py", line 1404, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/site-packages/click/core.py", line 760, in invoke
    return __callback(*args, **kwargs)
  File "/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/site-packages/kindle2notion/__main__.py", line 44, in main
    export_to_notion(
  File "/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/site-packages/kindle2notion/exporting.py", line 36, in export_to_notion
    message = _add_book_to_notion(
  File "/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/site-packages/kindle2notion/exporting.py", line 97, in _add_book_to_notion
    notion.databases.query(notion_database_id)
  File "/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/site-packages/notional/session.py", line 356, in query
    if issubclass(target, ConnectedPage):
TypeError: issubclass() arg 1 must be a class

Desktop (please complete the following information):

• OS: MacOS

Additional context
Here's a link to my clippings.

[tobiasfamos]

I have the same error. Also on MacOS, on a Kindle Oasis, Firmware Version 5.15.1

[Mahaprasad003]

Same error. Any fix yet?