Reply to Headphones won't work with Traktor Pro 2 and VCI-400 EG edition

I just started to use the VCI-400 and I everything works perfectly when I was testing it out. Well I never used my headphones while at home. I went to my gig and started to mix and no sound out of my headphones. I thought it was the headphones at first and grabbed another pair and same thing.

I am hoping that it could be the settings but I have played around with everything I thought I could play around with.

Please help I don't know what to do!