Help!! My relatively new (bought July 22) K1 Max has stopped working… I was in the middle of a 10-hour print when it started grinding and making all these loud noises and layer shifts… then I got a “Key:2505 Motor Drive exception” warning… Luckily I just got a second machine last week, but I got two because I needed two… now I’m back down to one, and I’m not sure how long the new one will last if this is a common problem Please help!! I need to get back up and running ASAP