Hi. I was running a job today and I had a paper jam caused by a dodgy stitch stopping the booklet from transferring to the trimmer. I cleared the jam but the error didn’t clear and the machine wouldn’t run. I have tried turning on/off removing the stitching heads, checking the closing plates, blowing air through all the usual things but nothing would clear the error code. There is definitely no paper in the machine. The screen shows paper jam in stitching and when I press the circle controller I get error code J6. Any ideas?