Bukkit

What steps will reproduce the problem?
1. Create arenas
2. come back next morning to find plugin doesnt work at all
3.

What is the expected output? What do you see instead?
Cant play or use the plugin or arenas

What version of the product are you using?
latest

Do you have an error log of what happened?
No

Please provide any additional information below.
I created 2 arenas in a separate world with multiverse and everything worked until the next morning and I found nothing is working anymore no commands, no arenas, no signs... Its really annoying and disappointing..

I've found the plugin tends to add an aberrant duplicate arena statement at theend in the arenas.yml file, remove the duplicate arena statement and the plugin will run as normal!