Once i Run to code with respective to video frames are not matching

[surya-vamsi2310]

Traceback (most recent call last):
File "C:\Users\surya\OneDrive\Desktop\TTNet-Real-time-Analysis-System-for-Table-Tennis-Pytorch\src\demo.py", line 107, in
demo(configs=configs)
File "C:\Users\surya\OneDrive\Desktop\TTNet-Real-time-Analysis-System-for-Table-Tennis-Pytorch\src\demo.py", line 48, in demo
for count, resized_imgs in video_loader:
File "C:\Users\surya\OneDrive\Desktop\TTNet-Real-time-Analysis-System-for-Table-Tennis-Pytorch\src\data_process\ttnet_video_loader.py", line 49, in next
assert ret, 'Failed to load frame {:d}'.format(self.count)
AssertionError: Failed to load frame 78