MC4000 right side problem

Hello, I am new, both mixing and in this forum, and my problem is the following:

I bought my MC4000 less than a month ago, and it was working perfectly. Today when I turned it on I realized that the right side (channel 2) did not turn on the button lights. Not a light on the bottom panel (Hoy Cues, Play, Sync), not Vinyl, and Channel 2’s volume doesn’t turn on the lights either. All buttons work, only they don’t turn on the lights. Can anybody help me? Thank you