Install cc 2014 from the Creative Cloud app and use that.
tks but its not related
and i will not install 2014 version.. this is not how it fix a problem. it should work as it was working before.
Rick was giving you a suggestion for how to meet your deadline not a way to fix the problem. You can open files created in AE CC 2015 in AE CC 2014 with no issues. So, if there's no solution for working in CC 2015, at least you won't miss your deadline.
Now, as to your issue, it sounds like something got corrupted in your AE install. The first step would be to trash your preferences (make sure you back them up first).
If that didn't work, the next step would be to uninstall and reinstall AE. Since you said you already did that, the next step would be to uninstall, run the Adobe CC Cleaner tool to clean everything, and then reinstall. Now, this can take a while because you'll want to back up your plugins, preferences, etc. so, again, working in CC 2014 to meet your deadline might be useful.
Alternatively, you could contact Adobe support.
sorry if i sound rude before..
i apreciate you guys effort to help me on this..
i already rented a workstation to finish this project on my deadline..
i try to clean adobe entries and reinstall .. i might do a complete format instead and clean my hole workstation.
format c: here i go
thanks for the help..