Bukkit

What steps will reproduce the problem?
1. the command /buyregion renew <region name>
2. the log pieces are the errors wich getting created by the auto sign update, we get those errors every 5 minutes.

What is the expected output? What do you see instead?
That the region is succesfully extend the payment.

What version of the product are you using?
1.1.5

Do you have an error log of what happened?
2013-10-05 14:38:29 [INFO] spinner1991 issued server command: /buyregion renew jail_002
2013-10-05 14:38:29 [INFO] [BuyRegion] An error has occured while renewing rental for: jail_002

Please provide any additional information below.
2013-10-05 15:17:17 [SEVERE] java.lang.NullPointerException
2013-10-05 15:17:17 [SEVERE]     at com.digitizer.Region.BuyRegion$1.run(BuyRegion.java:246)
2013-10-05 15:17:17 [SEVERE]     at org.bukkit.craftbukkit.v1_6_R3.scheduler.CraftTask.run(CraftTask.java:58)
2013-10-05 15:17:17 [SEVERE]     at org.bukkit.craftbukkit.v1_6_R3.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:345)
2013-10-05 15:17:17 [SEVERE]     at net.minecraft.server.v1_6_R3.MinecraftServer.t(MinecraftServer.java:520)
2013-10-05 15:17:17 [SEVERE]     at net.minecraft.server.v1_6_R3.DedicatedServer.t(DedicatedServer.java:240)
2013-10-05 15:17:17 [SEVERE]     at net.minecraft.server.v1_6_R3.MinecraftServer.s(MinecraftServer.java:483)
2013-10-05 15:17:17 [SEVERE]     at net.minecraft.server.v1_6_R3.MinecraftServer.run(MinecraftServer.java:415)
2013-10-05 15:17:17 [SEVERE]     at net.minecraft.server.v1_6_R3.ThreadServerApplication.run(SourceFile:583)

2013-10-05 15:22:17 [SEVERE] java.lang.NullPointerException
2013-10-05 15:22:17 [SEVERE]     at com.digitizer.Region.BuyRegion$1.run(BuyRegion.java:246)
2013-10-05 15:22:17 [SEVERE]     at org.bukkit.craftbukkit.v1_6_R3.scheduler.CraftTask.run(CraftTask.java:58)
2013-10-05 15:22:17 [SEVERE]     at org.bukkit.craftbukkit.v1_6_R3.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:345)
2013-10-05 15:22:17 [SEVERE]     at net.minecraft.server.v1_6_R3.MinecraftServer.t(MinecraftServer.java:520)
2013-10-05 15:22:17 [SEVERE]     at net.minecraft.server.v1_6_R3.DedicatedServer.t(DedicatedServer.java:240)
2013-10-05 15:22:17 [SEVERE]     at net.minecraft.server.v1_6_R3.MinecraftServer.s(MinecraftServer.java:483)
2013-10-05 15:22:17 [SEVERE]     at net.minecraft.server.v1_6_R3.MinecraftServer.run(MinecraftServer.java:415)
2013-10-05 15:22:17 [SEVERE]     at net.minecraft.server.v1_6_R3.ThreadServerApplication.run(SourceFile:583)