DOBOT MOOZ 2 Plus Laser Engraving not working


I am using MOOZ 2 Plus. I have engraved one job using Laser Engraving module, but after that the Laser power is not increasing. I am making it max 255 but the Laser beam is very less.

So can anyone please help and let me know what i should do.

Thank You,
Saurabh Dakhore