Fatal error: Area EMPLOYEE_TRAVEL_ERP2005 does not exist

Hi

I am getting the error for travel area page, some of the pages are working fine like benefit and payment.

When I point my portal to dev 210 client Travel area page working fine, once we change to 220 client this error is occuring.

I have compared the both settings in spro its very fine. Still I am not understanding the issue.

Please give your input if you have any idea.