Does an uninstall or reinstall help at all? Does logging in and out of Creative Cloud help? Computer restart?
In my experience when I've seen this it's a temporary error message and one of the above should solve it. If not, let me know.
I can't uninstall my character animator individually. I've also tried restarting my computer. Still have the same problem
Mac or windows?
What version of Ch? (shows in menu bar)
Can you create a new project? (File > New Project)