Question about Xiaomi M365

Sometimes the scooter automatically takes the throttle away unexpectedly, and then it just beeps (once long, 3 times short, again and again), but I can't accelerate any more. what is the scooter trying to tell me? If I then briefly press the brake, I can accelerate normally again. Fortunately, it's never been dangerous, but when you're driving at full throttle and suddenly the throttle is gone, you can lose your balance. Thanks for the feedback