one of the first things it does is try to create cache tables and build the cache for the list.
If it cannot create the tables that might cause a fatal error which would trigger the shutdown trap. Plugin tries to trap the shutdown and grab the error to pass the info on.
have a look in phpmyadmin and see if cache tables created.
If you have access to your system error log file, you could see if there is a message in that so you can see what is causing the problem.
What happens when you visit the settings pages ? in particular the cache control pages?