Game freezes after entering a duel

[Bartas]

Just wanted to ask if anyone has the same problem. Since last patch I cannot enter any duel coz my game just stops at "Preparing the match 0 seconds". Dunno what is tha cause of this, before I could PvP just fine. Maybe it's because I'm using WTFast, it looks like the game has the problem with connecting/loading arena, but I was always using WTFast and had no problems at all, all started since like 2-3 days ago. 

 

On a side note, I can exit the game or enter game menu but nothing else, it's not like the game crashes or something. just cant start a duel.

[Recordzz]

Same error here,any fix?