Error: Object reference not set to an instance of an object.

Error Message from program. Can you please help me here?

Version: SVCD2DVD 2.5
Build: 2.5.5030.0

Type: System.NullReferenceException
Source: SVCD2DVD
Message: Object reference not set to an instance of an object.

InnerException:
StackTrace: at x3284ccece41ee22b.xd3764d4f1e921081.xf81783e1b359f fc3()
at System.Threading.ThreadHelper.ThreadStart_Context( Object state)
at System.Threading.ExecutionContext.Run(ExecutionCon text executionContext, ContextCallback callback, Object state)
at System.Threading.ThreadHelper.ThreadStart()