UWL workitem is error while registering the FPM/Webdynpro Application

Hi Experts,

First of all I tried to search different discussion on this error but some how I could get what I have to do.

The current situtation is

1. I defined a task in SWFVISU trasnaction and it is of WBEDYNPRO ABAP APLLICATION

2. The visualization paramters are as follows

APPLICATION: <FPM OIF Based APPLICATION>

DYNPARAM: WI_ID=${item.externalId}&sap-wd-configId=ZWDA_****_BOOK

NAMESPACE: SAP

SYSTEM ALIAS: *****

now I executed  RE-REGISTER operation on the UWL configuration and the Item is added into XML file of uwl.webflow.<system.alias>.

Now when I recieve a workitem and I try to open it it gives me an error

the requested resource does not exist. details go to main page of this application

What needs to be done please suggest