Error happen at the end of processing

[hlia981]

Hi, I had encountered an error at the end of processing. The GUI worked as normal and the preview window showed the processed image correctly. However, at the end of processing(I suspect it's tryna merge the video), it throws an error.

system: windows11
Total video frames: 7953

Traceback (most recent call last):
  File "D:\google_downloads\remover\vsr\Python\lib\threading.py", line 932, in _bootstrap_inner
    self.run()
  File "D:\google_downloads\remover\vsr\Python\lib\threading.py", line 870, in run
    self._target(*self._args, **self._kwargs)
  File "D:\google_downloads\remover\vsr\resources\gui.py", line 277, in task
    self.sr.run()
  File "D:\google_downloads\remover\vsr\resources\backend\main.py", line 719, in run
    self.sttn_mode(tbar)
  File "D:\google_downloads\remover\vsr\resources\backend\main.py", line 596, in sttn_mode
    self.sttn_mode_with_no_detection(tbar)
  File "D:\google_downloads\remover\vsr\resources\backend\main.py", line 588, in sttn_mode_with_no_detection
    sttn_video_inpaint(input_mask=mask, input_sub_remover=self, tbar=tbar)
  File "D:\google_downloads\remover\vsr\resources\backend\inpaint\sttn_inpaint.py", line 273, in __call__
    image_crop = image[inpaint_area[k][0]:inpaint_area[k][1], :, :]
TypeError: 'NoneType' object is not subscriptable