Has new 48v system with Rec Q-bms. When I reboot the Cerbo GX, error code 8 comes up on the bms and the temp sensors alternate between the correct temperature and -999.9, first one at a time and then both, continuing until I turn off the system. While behaving like this, the relay contact pulses and the relay turns on and off every second. When I turn off the bms, the pulse stops after about 1 minute. Is this something I can change in the program on bms, or is this an error in it?