Impossible to connect my bluetooth headphones to Rekordbox

Hey, 
I've had an issue for a few weeks now and no way to find any solution out there. 
The problem is simple, I use to connect to Rekordbox, select my bluetooth headphones and prepare for my next gig. 
Now, each time I click on my headphones, it shows "no audio device" and i'm not able to work. The headphones work perfectly fine on any other software. 
What should I do ?
Cheers