Bukkit

What steps will reproduce the problem?
1.MultiVerse-Inventories Plugin
2.MultiVerse-Core Plugin
3.Quake Plugin

What is the expected output? What do you see instead?
Expecting to see lobby created with success, Says created, but then states "An error occured while executing the command. Check the Console"

What version of the product are you using?
Beta 2.4.0

Do you have an error log of what happened?
http://pastebin.com/UHrkvyGN

Please provide any additional information below.
I did have the plugin working fine, but as soon as I added MultiverseInventories, It crashed the lobby and no one could join any games. I tried resetting the quake Settings, it worked for a bit. But crashed again and now I can't even create lobbies or make maps.