It's first time i know that you can got kicked out from battle.
From my last experience, i just use One Hit Kill on Event Battle to collect those Exchangeable items.
There's no "Auto Win" on the mod so i believe when i use One Hit Kill, my Attack go 999999 to the enemy and win the battle.
DeathLantern's mod has Auto Win that force the battle to end with our win.
Maybe that's the reason i got banned when i use One Hit Kill.
Well, i don't know. I never try to learn any Program on APK.
Anyway, here's the screenshot on what i got after try to login next day on that fateful day.