Process Registration goes to blank white screen

Just recently, when attempting to register for an Event, after selecting the Process Registration button, it just goes to a blank white screen. It does not register, even if a free event or a coupon code is used. Have tried every variation I can think of, but they all fail.

I'm also not able to edit any Events from the Admin side. Clicking on an Event to edit, also gets the dreaded blank white screen.

All I see in Firebug is a 500 Internal Server Error. No errors on the server.

Events Booking: 1.5.2
Joomla: 2.5.9
PHP: 5.3


Thanks,
Cory

I manually re-installed all the modules and plugins for EB, and appears to have fixed the problem. This is the 2nd time I did it, strange that it took two times.

-Cory

Oh, OK . By the way, the latest version of EB is 1.5.3, not 1.5.3. So you should download latest version and upgrade it to your site.

Tuan