WebDynpro Problem

Hello

We got an error in 2 of the Tabs out of 3 Tabs in Enterprise Portal 6 SP12.

The error is :

An error has occurred:

"Failed to process the request."

Please contact your system administrator.

We have transported the 3 tabs from development to our QA box.Out of the 3 Tabs , one Tab is working and other 2 Tabs are not working in QA Portal.

Is these related to Web Dynpro Iviews.

Please advise ASAP.