Welcome to the forum.
This might be helpful:
If you post the gcode file, we could look at it and see if anything stands out.
- Often this error means that the cut file lacks any actual cutting instructions such as there were no contours picked during the CAM operation or the CAM operation was not completed.
- FireControl may need to be re-installed
- The post processing file used was not the correct one. The first line of the gcode would confirm that.