Running automated TC's from Rapise in SpiraTest

i have installed SpiraTest and Rapise(trial version)

- i've created several TC's in SpiraTest and configured the relationship between  SpiraTest&Rapise - all it's fine

- however when i try to [Execute] the TC from Spira, it generate the TestSetLaunch(on my local machine) - but i receive an error message: "The server could not be contacted to retreive test information. Please go into the settings and verify the server and user information, then run the test file again."

- i've checked all the settings -> all it's fine

Any ideas?

Br, 

Daniel Condurache