Problem with automation pro license

I had a script written in C# working in the past with xpedition vx.1.

"

objExtendedPrint = new MGCPCBEngines.ExtendedPrint();

objExtendedPrint.DesignFileName = "xxxx";

objExtendedPrint.SetupFileName = "xxxx"";

objExtendedPrint.BasicConfigurationFile = "xxxx"";

objExtendedPrint.OutputFileName = outf;

objExtendedPrint.Go();

"

Now when objExtendedPrint.Go(); runs it throws me an exeception and says that "No license was found for Automation Pro"

Someone had this problem before. It was working, but now it just gives me this error..

Thanks!