Photoshop won't open anything!

Some quick information before I get into the details of my problem:

Photoshop Version 20.0.3

2017 iMac Pro

Mac OS 10.14.3 Mojave

64 GB 2666 MHz DDR4 memory

Radeon Pro Vega 64 16368 MB Graphics

I cannot open anything in Photoshop, whether that's CR2 files, ARW files, JPG files, or PSD files. Anything I click to open, Photoshop says "The file could not be found". Obviously, it's not missing because I just clicked on it though. I have tried opening files both through the Finder and using Adobe Bridge. Interestingly, the one way I have found that does work is to go to the File > Open menu in Photoshop, but when working with raw files, even that will only open them in Camera Raw and then when I go to open images in Photoshop, it again says "The files could not be found". I'm working on some tight deadlines here, so any advice would be helpful!