If your apps were working on the same machine before & have recently started encountering this error, please try these steps and let me know if they help.
In the Creative Cloud app, press CTRL + ALT + T (Win) or CMD + OPT + T (macOS) to launch Creative Cloud Troubleshooter & select 'Close Creative Cloud and related processes' > click on Go. Doublecheck the Task Manager (Windows) & Activity Monitor (macOS) to ensure no processes related to Adobe or Creative Cloud are running & end the process if found active.
Windows - Press Windows + R to open Run Dialogue > enter %TEMP% > Click on OK > Delete any files or folders with 'NGL' in their names.
macOS - In Finder > press & hold OPT key > go to the top menu GO > Select Library > go to Logs > Delete any files or folders with 'NGL' in their names.