Cannot Write to a Directory I've used before.

I use a directory on my other drive for MCreator mods that I've used for years now, but all of the sudden, it now says the directory is located in a folder it can't read/write to.

The directory is:
"F:/MCreatorStuff/antipiracy_nf"

I don't understand whats wrong with it because it's held a bunch of my mods. I've tried running MCreator with administrator privileges and tried reinstalling MCreator but nothing works.