Hi Ranger Lee,
I would like to add one comment regarding the information of Hans-G.
Please first try to delete the OPM.db before anything else, we only recommend the re-installation when we've tried all the steps possible.
1. Clean Up cached user login information
- Close the Creative Cloud application.
- Navigate to the OOBE folder.
Windows: [System drive]:\Users\[user name]\AppData\Local\Adobe\OOBE
Mac OS: /Users/[user name]/Library/Application Support/Adobe/OOBE - Delete the opm.db file.
- Launch Creative Cloud.
Also, this is a known issue but less known for Adobe Creative Cloud, but please try and follow the link below also :
Error "Licensing has stopped working" | Mac OS
http://helpx.adobe.com/creative-suite/kb/error-licensing-stopped-windows.html
Let us know how it goes.
Thank you.
Arnaud.