The PVP Fort
The PvP Fort, located near the Turtle Falls, Dig Site, Spring Clearing, and Rocky Ridge, is a place where players test their skills and battle with another player or PvP (Player vs Player). PvP Fort will be unlocked after getting the Witherslither Badge. This place is for fun and this place is only the place where you can battle other players, along with Arena.
If players aren't available in the room you are, you may talk to the girl who looks like a cat. You will need to place your bet. If you win, you will earn rewards, but if you lose, it is a waste. There will be no refund given for PvP issues technical or otherwise.
Please PvP at your at risk. Developers won't fix your problem. Its your own responsibility and risk.