I guess that could be the problem, the night before the problems started, the telescope didn't return to the park position after finishing the sequence, and also has failed to park some nights again... I'll check the cable as it will probably be damaged.
Anyway, yesterday I installed a PHD2 beta version optimised for the QHY cameras, and the SGP opened the PHD2 on sequence start, but it couldt get control of the program when it tryed to calibrate the PHD2, it sended the command but the PHD2 dind't connect the camera/mount and start the calibration procedure.... I guess this is normal as the PHD2 version I was using is a beta, right?
Thank you so much for your time.