[Tool✓] Tileset Animation Editor (AnimEdit) not saving image

I'm using version 0.8.2 of the program with FireRed on Windows 10. every time I load animations and click Save Image, I get an error that says this:
Unable to create file " ".
I've tested it with my rom hack and a vanilla FireRed rom.

for some reason, when I moved the files to my local hard drive from my external one it worked fine. But another problem arose.

Try using administrator mode. What's the other problem you are facing?

The other problem is when I did manage to insert the new animations, some character-related ones would softlock the game: the Pokemon Center nurse bowing and the player character using Fly.