There are 2 cases in here, either you played this game without normal Nutaku app for bypassing Tutorials or you are using cheats in Arena which is Taboo in their games.
If you are new player, DO NOT USE MOD APP on starting game or your game will crash/account blocked by the time you play for few minutes. While old players are restricted to use mods on certain Area like Arena, Extreme Campaign, or Special events where 1-hit kills is totally not allowed to do.
