My table wont finish a gcode and fire control needs to be restarted

so i got my table set up got the wiring from the helpful ppl on here and facebook. but when i start a cut my pc stops working the program and the torch will stop mid cut and just stay on till the thc turns it off please help.

From your description this sounds like interference from the plasma cutter. Read this thread:

For tips, basically make sure you have the USB chokes installed.
Does this happen if you perform a manual torch fire? have a piece of scrap under the torch and be ready to turn off the plasma cutter if it stays stuck on.