Check for Creative Cloud desktop app updates
Windows users, try this next
If you’re using Internet Explorer on a Windows system, you may have a network issue. Setting auto-detection of LAN settings may solve them.
Uninstall and reinstall the Creative Cloud Desktop App
The Creative Cloud desktop app is critical for working with Adobe apps but if you’re having problems installing apps because it has been corrupted, you should uninstall and reinstall it to fix the problem.