"null backup" No backup performed.

[bbqroast]

Hey,

I've just tried to setup your backup plugin, but it's not working. If I issue the /backup command I the following appears in the console:

"nullbackupstarted"
"nullbackupfinished" (almost immediately afterwards).

No backup is added to the backup folder.

http://pastebin.com/SDfbADqJ Config.yml

http://pastebin.com/YHpENZvp Strings.yml

Thanks in advance. I have two other plugins installed, ProtocolLib and 173Generator (which depends on the former). I'm running the latest Beta build (for 1.7.5).