Bukkit

What steps will reproduce the problem?
1.I don't understand the top of the config
2.Also, for some reason the karma is not given. I believe it is because of the config files :P
3.

What is the expected output? What do you see instead?

What version of the product are you using?
I am using the latest. May it be because of the 1.2.5 Your most recent activity was in april from what i saw so yeah.

Do you have an error log of what happened?

2012-07-19 23:55:09 [INFO] Server permissions file permissions.yml is empty, ignoring it
2012-07-19 23:55:09 [WARNING] Can't keep up! Did the system time change, or is the server overloaded?
2012-07-19 23:55:09 [WARNING] Task of 'Karma' generated an exception
java.lang.NumberFormatException: null
    at java.lang.Integer.parseInt(Integer.java:454)
    at java.lang.Integer.parseInt(Integer.java:527)
    at me.icyrelic.com.Karma$1.run(Karma.java:219)
    at org.bukkit.craftbukkit.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:126)
    at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:533)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:459)
    at net.minecraft.server.ThreadServerApplication.run
Please provide any additional information below.
Thats all. Please message me back soon!