Now if you shift click set start location item it'll automatically create game area around the player without having to place blocks manually.
Now if you accidentally remove a block from game arena and reload the server and place it back then it'll register itself without resetting the start location after a new server reload.
Fixed unready arenas are also in the sorted list that used for random join command.
Removed ScriptEngine from reward execution due to it's been removed in JDK 15.