Travel and Expenses standard iview is not working

Hi all,

i have installed followings in my portal

1. Business Package for Employee Self Service (mySAP ERP )

2.Web Dynpro Development Components (patches) from service marketplace (Refer SAP Note 761266u2014Self Service Patches to know the version to be downloaded):

u2022 ESS

u2022 PCUI_GP

Now i am able to view the Travel and Expenses standard iview in Content Administration.

I have created all the required JCO using user mapping (i am not using SOS)

The the JCO are working i tested , all are in green color,

but when i right click on any one of these iviews and try to see the preview i am getting following error.

500 Internal Server Error

Failed to process request, Please contact your system administrator

Please suggest me what to do next ??