9-3 1999 Convertible Soft Top Failure

Hi, I have problems with the soft top. I am getting the following error message: "SOFT TOP FAILURE". Do you have any suggestions on what may be the problem? I purchased the car with this problem and never opened the soft top. What I see also is that the rear left window is not working. Do you believe that this is the problem and where can I get some more information regarding this problem? I checked the hydraulic liquid and it's ok.