Cannot Connect to Integeration Repository

Hi All

I am stuck up with a problem in XI 3.0.

I am doing one scenario of sending an iDOC to JDBC.

Everything is going fine i have done all the steps of Integeration Repository(Design) but when i move into Integeration Directory(Configuration) and try to click on Configuration Wizard it gives me an Error

"Cannot connect to Integeration Repository"

Please help me.

Thanks In Advance