Hey Guys, update. I "deactivated" my license key, uninstalled all versions of CA from my computer, and moved a bunch of files to bring my free space on my hard drive from 5GB to around 20GB. Completely shut my computer down, disconnected from the internet. Restarted, reinstalled X11 and it is working normally now. Whew! Not sure which one of those was the issue, but it seems to be resolved. Thanks for all the suggestions, and take care!
J2JosephHarris's post in None of my versions of Chief Architect Premier will run all of a sudden! was marked as the answer