White screen after login folowing update


I have installed the FreePBX version 12 and this morning after update 2 new modules using the admin web interface the Admin console appears as a blank page after login with the admin account. I already try restart asterisk, also try use the command amportal a r, amportal restart the http server or even restart the server but the problem persists.
Can someone please help me fix this problem.

Thanks in advance

I moved 5 posts to an existing topic: Internal Server Errors after Updating to RC 12