stk500_recv() and stk500_getsync()

My arduino Uno was working normally. I ran the program succeed but Suddenly it has an error "skt500_recv() : programmer is not responding
stk500_getsync() attemp 1 of 10: not in sync: resp=0xc9"
I tried to plug out all the wire and pushed the reset button, I checked COM port and update driver, download older driver but still cant handle it :sob: :sob: Could somebody help me please!!! Thank you guy very much!!!

Could be that you broke your Arduino.

Hard to tell.

Try another.