Unhandled Exception: java.lang.OutOfMemoryError: PermGen space

In your instance log files, you have an out of memory error similar to the following:

13.03.2007 12:06:02 *ERROR* delivery: Unhandled Exception: javax.servlet.ServletException: PermGen space javax.servlet.ServletException: PermGen space ...

Increase the permgen space. For more information, see your JVM documentation. Usually, it's necessary to add the following parameter to your JVM parameters:

-XX:MaxPermSize

This error can occur when the Java permanent generation block is full.