Anybudy answer me please my dishwasher sprayer arm not spin,water in bottom but sound like a 'hum' but nothing happen and cut of power solve this problem please thank you

Sounds like something got stuck in the water pump. The motor will make a hum sound because it cannot spin. Water left in the tub means that the pump cannot pump the water out. Drain unit and see if you can remove blockage. You might have to disassemble the pump assembly. If something is not stuck then you will be replacing the pump assembly or you will be getting a new dish washer.