[Guide] Ripping models from Sketchfab

I feel i've come super close to this working but I think im missing something
I assume the files i've gotten are correct, tried the renaming process, and the IDM process, but no htm.
The script loads, I get the file prompt but then[font=-apple-system, BlinkMacSystemFont, Inter, Roboto, "Helvetica Neue", Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol"]I get this error in blender (blender and python noob here)[/font]
any help is appreciated?

File "starter.py", line 1767, in openFile
parser=Parser()
File "starter.py", line 1753, in Parser
log=open('log.txt','w')
IOError: [Errno 13] Permission denied: 'log.txt'