Henry--- you`ll have to order a stock so to get you out of trouble.. I`d say you were itching in your sleep and that`s what happened....... all I can suggest is literally stitch it together with a needle and thread while waiting on a new system....you could run a `bandage` of tape down along the repaired line[on the underside, obviously] but leave the backing strip on it.....like a plaster... I hope you can repair it until a new one arrives.... just proves the need to always have a back-up system to hand for emergencies....best wishes, Paul.