SenderAgreement not deploy-able to service registry

I have SAP PI 7.11

I simply created a WS(adapter)-TO-WS(adapter) Scenario. In the integration builder while I am trying to publish the sender agreeement to the service registry I get an error. I already have configured the Service registry. and I am able to access the url as well.

http://abcpi:50100/sr_central

ALSO, I tried another way that is I used display wsdl in the sender agreement. I copied the wsdl file and while trying to access it through the SAP UI or VS.NET 2013 (microsoft) it returns the error. (Web service processing error; more details in the web service error log on provider side (UTC timestamp 20151211175603; Transaction ID 566A73B69A2E307FE1000000AC10C8D8))

I AM STUCK, I don't know why things are so complicated in SAP PI. Please help me to solve this issue.