Error Rendering JSP Component After Upgrade to SP12

Hi everyone,

I have developed an application in SP9 that uses a JSPDynPage Portal Component. The application was working fine before the upgrade.

After I did my upgrade to SP12, it sometimes gives me the following error: "Error rendering jsp component". And without me doing anything, the problem after a while gets fixed by itself.

The problem has been on and off now for two days. Any ideas of why this error is happening.