HELP! Miss prints after rapid move rattling noise grid completely off looses position

So my up300 commences the print of the raft and when its completed and makes a rapid move to the start point of the print there is a loud vibrating noise and then it print completely off the raft. Now after the rapid mode it gives me an error. after the rattle noise it grid is completely off. it does not even know where the nozzle detection probe is and drives the extrude nozzle into the bed