Good afternoon I would like a help I changed the controller on the scooter because it had a problem with the rear light and I put a new V3 controller not genuine from allixpres and flashing ESC board with St-Link and Scooterhacking ReFlasher Everything ok then with Scooter Hacking Utility I passed the firmware standard vanilia and I had this picture that had BMS 1.4.1 but suddenly ERROR 21 started to light up and the scooter does not start what I saw is that the BMS was lost in the next image , so now I don't have a functional Scooter some help to see if there is a way to fix it or has a problem and go to change bms. Thank you very much