every time i do step 2 (feed source frames) it crashes all the time. heres the error:

['C:/Users/colorsfulls/Videos/Imposter in the vents.mp4']
Input FPS: 24.0
C:/Users/colorsfulls/Videos/DAIN test
Main Folder: C:/Users/colorsfulls/Videos/DAIN test/Imposter in the vents/
Starting PNG frames extraction!
Finished PNG frames extraction!
Your render is complete.
Check out the output folder for the result.
Main Folder: C:/Users/colorsfulls/Videos/DAIN test/Imposter in the vents/
Conf. Method: 0
Traceback (most recent call last):
  File "my_design.py", line 61, in run
  File "my_DAIN_class.py", line 1524, in RenderVideo
  File "my_DAIN_class.py", line 846, in Configure
  File "networks\DAIN.py", line 81, in __init__
  File "MegaDepth\MegaDepth_model.py", line 18, in HourGlass
  File "MegaDepth\options\base_options.py", line 125, in parse
  File "MegaDepth\util\util.py", line 66, in mkdirs
  File "MegaDepth\util\util.py", line 71, in mkdir
  File "os.py", line 213, in makedirs
  File "os.py", line 223, in makedirs
PermissionError: [WinError 5] Access is denied: './checkpoints'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "my_design.py", line 75, in run
PermissionError: [Errno 13] Permission denied: 'crash_log.txt'