Problem with MGM80

[Quebecois_Sti]

Hello,
My ESC worked correctly for the last 2 weeks but right now I try to run with but there is not work correctly. When I turn on the speed, it beep and the LED flash that show that is correct but when I put my transmitter in forward position, it work but when I go to neutral and I want to go to forward position, the motor don't move. I have to turn off-turn on the speed and the motor do the same thing. I program it 2-3 times but I am not sure if it correct but anyway if I do the default program it do it anyway.

MGM 80amp
Feigao 8s
Kokam 3s 11.1v