Jasper server portlet with liferay integration

Environment:

1. JasperReportsServer-portlet-5.0.1 war deployed in LIferay 6.1.20 -----No errors. Successfully deployed.

2. Jasper server (5.1) is also running.

3.Also made change to portlet.xml to give jasper server's URL.

But when i tried to display this default jasper server portlet to page i am getting error as 

When i tried to add the report using  reports admin  (control panel) its getting published.No error.

Can any one suggest me the solution.