You would benefit by learning a little more about LabVIEW. You would learn that many LabVIEW functions have connections at the lower corners for something called the "Error Line", which can provide you with more expressive Error Messages than that shown in the picture you attached. The picture of your program is also amazingly simplistic -- it is hard to imagine that it does anything. Is this all there is to it?
It would help us a lot if you attached your actual LabVIEW code (that is, the file or files that have the extension ".vi") so we can get a better understanding of what you are trying to do, and where you are going astray.
Bob Schor