Hi Kovid, thanks for your reply and amazing software! My whole family loves it!
I opened safe mode and it wouldn't even let me open Calibre at first. It said there was an error in the library database or something, and asked me if it would like to recover or fix it. It kept failing, so I made a new library. Then I was getting the following error:
Tried turning off all my anti virus stuff as well, no luck. Not sure what's going on