This plugin IS working! You need to install FastAsyncWorldEdit, but there is a problem... The items, are not working, like when you join the server, Can you please fix it? I really want this plugin to work! ;)
Good luck!
Very good plugin and very good leak but I have an error in the console when I execute the command '/ arena schematic <name of arena>' (I use PaperSpigot 1.7.10 & FAWE)