Reply to Kontrol S4 main outputs

I recently went an had a sound check an hour before I were to start playing. Everything went well at the check but I came back an hour later and my main outs were dead and all they were making was a static clicking sounds and its the same for the RCA output and 1/4 jacks. The sound still comes through my headphones but even on my laptop screen the mains signal is not showing anything.

Do I need to take the kontroller in for repairs or will maybe just reinstalling Traktor on my laptop work ??

Thanks a lot