DDJ SB3 PROBLEM

Hello,

my controller worked fine few day ago. Today i plug him and open Serato, then every button are shining like always, but none of buttons on console response. Console button shining like always but button not response.

Could you help me what i can check ?

I tried on other computer and there is the same problem.

What kind of problem could it be, maybe setting in serato or something like that ? (update done)