Error 90k

Hey fellow PvPers. I was wondering if you have experienced this Error 90k issue in the wolves den a lot. It seems like every match I do, I'll get error 90k and it's really frustrating...

I don't get this anywhere else in the game, just in wolves den.

So, do others experience this issue?

First I need to know what is this Error 90k... I've never encounter it before... or probably I did but not know it is Error 90k... Only error I had is Black Loading screen.