Server crashes when player goes near a certain spot

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UckoDucko

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Hey guys, I recently launched my server and we were going really well. 20+ players, when all of a sudden, the server closes. No one done it, the server had crashed. We turned it back on and once again, it crashed.
We seem to believe its an area in the world that when someone goes near it, it crashes.

Here are some of the errors we have got in console:

[Server] WARN Ignoring unknown attribute 'generic.armor'

1.11 19:21:03 [Server] ERROR Encountered an unexpected exception
11.11 19:21:03 [Server] INFO net.minecraft.server.v1_8_R3.ReportedException: Exception ticking world
11.11 19:21:03 [Server] INFO at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:781) ~[custom.jar:git-Spigot-21fe707-e1ebe52]
11.11 19:21:03 [Server] INFO at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) ~[custom.jar:git-Spigot-21fe707-e1ebe52]
11.11 19:21:03 [Server] INFO at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) ~[custom.jar:git-Spigot-21fe707-e1ebe52]
11.11 19:21:03 [Server] INFO at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [custom.jar:git-Spigot-21fe707-e1ebe52]
11.11 19:21:03 [Server] INFO at java.lang.Thread.run(Thread.java:745) [?:1.8.0_111]
11.11 19:21:03 [Server] INFO Caused by: java.lang.NullPointerException
11.11 19:21:03 [Server] INFO at net.minecraft.server.v1_8_R3.StructureGenerator.c(StructureGenerator.java:107) ~[custom.jar:git-Spigot-21fe707-e1ebe52]

My best guess would be there are 1.9 items in our 1.8 server? If you have any idea on what's wrong with my server, I'd appreciate the help. We have already started making a new world and pasting the spawn in, but if we can fix the world already being used, it would save time and keep the players happy :)
 
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Trevato

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Can we see the whole error message?
 

BOOP

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UckoDucko

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UckoDucko

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If you are using 1.8-1.8.3, theres a chance that the players did a sign glitch that corrupts the chunk. It was a major outbreak that led many large servers including my own to either create a patch for it or fully update to a new spigot version. To get rid of that and patch it, update to 1.8.8 or find the sign glitch patch. But since its there already, you will have to have that sign removed which you cannot see, then the patch plugins will work. If you cannot find it, update to 1.8.8.

We are running 1.8.8.


Follow this guide, includes the Chunkster step. I have had this exact issue happen, and was easily fixed by following this guide. May take a LONG time if you have a large map.

https://bukkit.org/threads/how-to-fix-your-world-errors-corrupt-chunks.54254/

I've used Method 2 from this post, and when running the commands it says there are no region files to scan.
 

DeusTheOx

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UckoDucko Make sure you follow it, step by step. It will pull the region files and scan them and tell you which chunk is corrupted. It will also attempt to repair that region without the builds being lost from it.
 
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