Went to use Dreamweaver 20.2 today using Mac OS 10.15.7 and got this message. Any thoughts?
Typically, clearing the cache or creating a new user configuration folder will fix it.
Sometimes it requires restoring preferences: https://helpx.adobe.com/dreamweaver/kb/restore-preferences-dreamweaver.html
There is a new October release version (21.0). You might want to upgrade.