Please update for iPhone 6 users

Very fun game but I am trying to play on iPhone 6 but it will not connect to the servers I dont know if they need to update the game for iPhone 6 users or its my connection. I just want to play this game because its fun and I played it before I had a phone on a iPod touch but I cant play the game because its stuck on the part where you defeat the second boss and you unlock siege mode but it cant connect so Im stuck on the screen forever and I cant play no more.

Filched fun about Heroes vs Monsters, v3.4