Reply to Omnicontrol + Traktor mapping pb

Hi guys !
I just bought a new computer and I'm having some problems to set up my Numark Omni Control with Traktor :

First of all, the PFL button that's supposed to let me hear deck A or B's sound on my headphones doesn't work, the master is playing anyway in the headphones and pushing one for instance deck B's PFL will just make it louder in the headphones.

The other thing is that the FX are not how they used to be : under the knobs, instead of "ON", there is "RST" on the first FX, "FRZ" on the second and "SPR" on the third. What does that mean and how do I get them actually activated ?

Of course, before starting a new thread I tried different mapping I could find in this community and in the numark's but it never works properly : I still have the headphones problem (and new ones..). As you can guess I'm kinda noob with all the settings and I'll appreciate your help and time !
Thanks !