Sounds like you have a php error, have you checked the php error log? or if you need assistance with inspecting what could be the fault could you post it? (you may want to replace anything you consider sensitive data from it or just send the lines from the time it crashed)It depends on what database you're running and if you've have any GUI for it or not, if you've phpmyadmin you'll probably want to use that to look into the database.