I recently purchased/updated my Clip Studio Paint to the most recent update, but for some reason, I am unable to save new or edited files. This problem was not present until today and had not once occurred on any days prior

(Images attached below)
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The first image shows a pop up that showed up when I was trying to save an edited version of one of my pieces. I followed the directions stated below and ended up with the pop up in the second image below.
The pop up in the second image is also what shows up whenever I try saving a new piece

Any help is very much appreciated!