Looks like a crash while attempting to initialize plugins.
Do you have any plugins installed for MediaCore/Premiere?
This crash is caused by a corrupt UserWorkspace file.
Take them all out and move them back until you find the corrupt file.
I just installed AE, have never used it, and am seeing it bail on startup with the same odd language registry key error. Please see my post on a related thread.
Any luck here? Would be nice to get AE to boot so I could evaluate it.