Cannot finish initial migration

[g4njawizard]

Hi,
first time trying your tool but I have more issue's than success with it.
I use unraid and the current version of your tool: 23.02.02

Using plex public URL sometimes leads to an DNS resolution timeout.
Right now I stuck again at a different error:

libpng error: bad adaptive filter value
Exception in thread Thread-1:
Traceback (most recent call last):
  File "/usr/local/lib/python3.9/threading.py", line 980, in _bootstrap_inner
    self.run()
  File "/usr/local/lib/python3.9/threading.py", line 917, in run
    self._target(*self._args, **self._kwargs)
  File "/app/app/scripts.py", line 2003, in fill_database
    run_script()
  File "/app/app/scripts.py", line 1975, in run_script
    main()
  File "/app/app/scripts.py", line 1946, in main
    banners = module.check_banners(tmp_poster, poster_size)
  File "/app/app/module.py", line 104, in check_banners
    background = cv2.cvtColor(background, cv2.COLOR_BGR2RGB)
cv2.error: OpenCV(4.7.0) /io/opencv/modules/imgproc/src/color.cpp:182: error: (-215:Assertion failed) !_src.empty() in function 'cvtColor'

Is there a way to not always restart the merge from the beginning, but just continue where it stopped?