I have no idea what this is.

What does this weird error mean? I saw this on my server that is hosted on Gizmo Servers, then when I went to test run the server on my home computer after downloading a copy of the server I saw it again. What does it mean and how do I fix it?

Code:

[00:23:21 WARN]: ºc[Punishmental] Failsafe Activated to prevent server lock-up
[00:23:21 WARN]: ºc[Punishmental] If the server was running fine when this happened, please consider deactivating or raising the fail
safe value in the Punishmental Config Settings
[00:23:21 WARN]: ºa[Punishmental] Starting lag checker
[00:23:21 WARN]: ºa[Punishmental] Lag cheker running
[00:23:21 INFO]: UUID of player grid21 is ece78d93bb9f4e0b8549cc01e51263d5
[00:23:22 INFO]: grid21[/192.168.1.20:64490] logged in with entity id 823 at ([world] 71.85862050372519, 58.0, -846.8917113628708)
[00:23:23 INFO]: Subject cured of any punishments
[00:23:23 WARN]: ºc[Punishmental] Failsafe Activated to prevent server lock-up
[00:23:23 WARN]: ºc[Punishmental] If the server was running fine when this happened, please consider deactivating or raising the fail
safe value in the Punishmental Config Settings
[00:23:23 WARN]: ºa[Punishmental] Starting lag checker
[00:23:23 WARN]: ºa[Punishmental] Lag cheker running
[00:23:46 WARN]: java.lang.IndexOutOfBoundsException: Index: 847, Size: 304
[00:23:46 WARN]:        at java.util.ArrayList.rangeCheck(Unknown Source)
[00:23:46 WARN]:        at java.util.ArrayList.set(Unknown Source)
[00:23:46 WARN]:        at net.minecraft.server.v1_7_R1.RegionFile.a(RegionFile.java:197)
[00:23:46 WARN]:        at net.minecraft.server.v1_7_R1.ChunkBuffer.close(SourceFile:232)
[00:23:46 WARN]:        at java.util.zip.DeflaterOutputStream.close(Unknown Source)
[00:23:46 WARN]:        at java.io.FilterOutputStream.close(Unknown Source)
[00:23:46 WARN]:        at net.minecraft.server.v1_7_R1.ChunkRegionLoader.a(ChunkRegionLoader.java:197)
[00:23:46 WARN]:        at net.minecraft.server.v1_7_R1.ChunkRegionLoader.c(ChunkRegionLoader.java:184)
[00:23:46 WARN]:        at net.minecraft.server.v1_7_R1.FileIOThread.b(SourceFile:30)
[00:23:46 WARN]:        at net.minecraft.server.v1_7_R1.FileIOThread.run(SourceFile:23)
[00:23:46 WARN]:        at java.lang.Thread.run(Unknown Source)
[00:23:52 INFO]: Subject cured of any punishments
[00:23:52 WARN]: ºc[Punishmental] Failsafe Activated to prevent server lock-up
[00:23:52 WARN]: ºc[Punishmental] If the server was running fine when this happened, please consider deactivating or raising the fail
safe value in the Punishmental Config Settings
[00:23:52 WARN]: ºa[Punishmental] Starting lag checker

 

seems like an issue with Punishmental plugin, i would take it up with the auther HERE

 

Well here is the weird part. Thus plugin isn't install on my server at all. Nor did I install it in the first place.

 

grid21 Paste startup log + screenshot of plugins folder.

 

Well I went to go check my server logs and plugin list and now that plugin isn't showing up anymore......
Do you want me to still post my plugin list and server log?

 

grid21 So the problem is fixed or you have something else that is wrong?

 

I think it's fixed but I have literally no idea how that plugin even ended up on my server. I have other errors in my console but that's just because the people that made it haven't bothered to update anything yet.