Please follow the below steps:
1- Click on the settings wheel on the top right corner of Creative Cloud app > preferences > Quit
2- Force Quit all Adobe related processes from Activity Monitor (eg- Creative Cloud, Core sync, CC library, Adobe Desktop Services, Adobe IPC broker, Adobe Crash daemon etc.)
3- Right click on Finder icon and select "Go-To" Folder option.
You will get a text box, type-in below command and then hit 'Return' key.( " Do not miss ~ symbol " )
~/library ( It will open User Library folder. )
4- Then navigate to Application Support>Adobe> trash OOBE folder and AAM Updater folder as well
5- Launch Creative cloud app and sign in
Let us know if this helps.