xtop.exe is "Not Responding"

I have a model that i am trying to create drawing from using a template. I am running it through Sigmxim’s Smart assembly to do a bunch of things. This program has worked plenty of times before this but in the last 3-4 weeks in locks up and the only thing that i can find is that the xtop.exe doesn’t want to work anymore. But when i run the same model though other Smart assembly programs it creates the drawings that those programs as supposed to do. I think i t has to do with trying to recall data from a excel file and fill in a table with that data but i am unsure. I have let Creo sit for 2 hours waiting for it to kick in but it never does. (sometimes if you wait it works again even though it says not responding). i’ve created other models and have had other people try and create the drawings as well though the Smart assembly function but they get the same results I do, It just permamently hangs up.