Sheetcam and LinuxCNC and QTplasmaC

Hi! I have made a plasma table whith QTplasmaC and it works great. I had a idea that i could use it as a drag knife table aswell. So i bought SheetCAM and the drag knife plugin. I have trouble to get the postprocessor to work. I have attached a couple of pictures and the file with the error. Do you have any idea what the problem is        

The Sheetcam forum will be the best place to ask that question.
Probably a good idea to attach your JOB file too.

The variable "entitylength" is the length of the current cut, and for some reason it thinks it's zero.