Encountered an unexpected exception
net.minecraft.util.ReportedException: Exception while updating neighbours
        at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:945) ~[MinecraftServer.class:?]
        at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:458) ~[lt.class:?]
        at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:806) ~[MinecraftServer.class:?]
        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:665) [MinecraftServer.class:?]
        at java.lang.Thread.run(Unknown Source) [?:1.8.0_181]
Caused by: java.lang.StackOverflowError
        at java.security.AccessController.doPrivileged(Native Method) ~[?:1.8.0_181]
        at java.lang.ClassLoader.checkPackageAccess(Unknown Source) ~[?:1.8.0_181]
        at net.minecraft.world.World.func_147460_e(World.java:1103) ~[ahb.class:?]
        at net.minecraft.world.World.func_147459_d(World.java:1025) ~[ahb.class:?]
        at net.minecraft.world.World.func_147444_c(World.java:987) ~[ahb.class:?]
        at net.minecraft.world.World.markAndNotifyBlock(World.java:832) ~[ahb.class:?]
        at net.minecraft.world.World.func_147465_d(World.java:810) ~[ahb.class:?]
        at net.minecraft.world.World.func_147468_f(World.java:941) ~[ahb.class:?]
        at thaumcraft.common.blocks.BlockAiry.explodify(BlockAiry.java:389) ~[BlockAiry.class:?]
        at thaumcraft.common.tiles.TileNodeConverter.checkStatus(TileNodeConverter.java:146) ~[TileNodeConverter.class:?]
        at thaumcraft.common.blocks.BlockStoneDevice.func_149695_a(BlockStoneDevice.java:301) ~[BlockStoneDevice.class:?]
        at net.minecraft.world.World.func_147460_e(World.java:1086) ~[ahb.class:?]
        at net.minecraft.world.World.func_147459_d(World.java:1025) ~[ahb.class:?]
        at net.minecraft.world.World.func_147444_c(World.java:987) ~[ahb.class:?]
        at net.minecraft.world.World.markAndNotifyBlock(World.java:832) ~[ahb.class:?]
        at net.minecraft.world.World.func_147465_d(World.java:810) ~[ahb.class:?]
        at net.minecraft.world.World.func_147468_f(World.java:941) ~[ahb.class:?]
        at thaumcraft.common.blocks.BlockAiry.explodify(BlockAiry.java:389) ~[BlockAiry.class:?]
        at thaumcraft.common.tiles.TileNodeConverter.checkStatus(TileNodeConverter.java:146) ~[TileNodeConverter.class:?]
        at thaumcraft.common.blocks.BlockStoneDevice.func_149695_a(BlockStoneDevice.java:301) ~[BlockStoneDevice.class:?]
        at net.minecraft.world.World.func_147460_e(World.java:1086) ~[ahb.class:?]
        at net.minecraft.world.World.func_147459_d(World.java:1025) ~[ahb.class:?]
        at net.minecraft.world.World.func_147444_c(World.java:987) ~[ahb.class:?]
        at net.minecraft.world.World.markAndNotifyBlock(World.java:832) ~[ahb.class:?]
        at net.minecraft.world.World.func_147465_d(World.java:810) ~[ahb.class:?]
        at net.minecraft.world.World.func_147468_f(World.java:941) ~[ahb.class:?]
        at thaumcraft.common.blocks.BlockAiry.explodify(BlockAiry.java:389) ~[BlockAiry.class:?]
        at thaumcraft.common.tiles.TileNodeConverter.checkStatus(TileNodeConverter.java:146) ~[TileNodeConverter.class:?]
        at thaumcraft.common.blocks.BlockStoneDevice.func_149695_a(BlockStoneDevice.java:301) ~[BlockStoneDevice.class:?]
        at net.minecraft.world.World.func_147460_e(World.java:1086) ~[ahb.class:?]
        at net.minecraft.world.World.func_147459_d(World.java:1025) ~[ahb.class:?]
        at net.minecraft.world.World.func_147444_c(World.java:987) ~[ahb.class:?]
        at net.minecraft.world.World.markAndNotifyBlock(World.java:832) ~[ahb.class:?]
        at net.minecraft.world.World.func_147465_d(World.java:810) ~[ahb.class:?]
        at net.minecraft.world.World.func_147468_f(World.java:941) ~[ahb.class:?]
        at thaumcraft.common.blocks.BlockAiry.explodify(BlockAiry.java:389) ~[BlockAiry.class:?]
        at thaumcraft.common.tiles.TileNodeConverter.checkStatus(TileNodeConverter.java:146) ~[TileNodeConverter.class:?]
        at thaumcraft.common.blocks.BlockStoneDevice.func_149695_a(BlockStoneDevice.java:301) ~[BlockStoneDevice.class:?]
        at net.minecraft.world.World.func_147460_e(World.java:1086) ~[ahb.class:?]
        at net.minecraft.world.World.func_147459_d(World.java:1025) ~[ahb.class:?]
        at net.minecraft.world.World.func_147444_c(World.java:987) ~[ahb.class:?]
        at net.minecraft.world.World.markAndNotifyBlock(World.java:832) ~[ahb.class:?]
        at net.minecraft.world.World.func_147465_d(World.java:810) ~[ahb.class:?]
        at net.minecraft.world.World.func_147468_f(World.java:941) ~[ahb.class:?]
        at thaumcraft.common.blocks.BlockAiry.explodify(BlockAiry.java:389) ~[BlockAiry.class:?]
        at thaumcraft.common.tiles.TileNodeConverter.checkStatus(TileNodeConverter.java:146) ~[TileNodeConverter.class:?]
        at thaumcraft.common.blocks.BlockStoneDevice.func_149695_a(BlockStoneDevice.java:301) ~[BlockStoneDevice.class:?]
        at net.minecraft.world.World.func_147460_e(World.java:1086) ~[ahb.class:?]
        at net.minecraft.world.World.func_147459_d(World.java:1025) ~[ahb.class:?]
        at net.minecraft.world.World.func_147444_c(World.java:987) ~[ahb.class:?]
        at net.minecraft.world.World.markAndNotifyBlock(World.java:832) ~[ahb.class:?]
        at net.minecraft.world.World.func

好像是world世界崩溃了

是模组服务器嘛

StackOverflowError是由于当前线程的栈满了  ，也就是函数调用层级过多导致。
建议升级配置，也有可能是你的核心版本过低，也有可能是调用了含有高级代码的插件/mod
这边建议试试看升级forge

怎么升级forge

你的服务器核心 和 版本是什么呢

好了，换了个kc核心

很高兴可以帮助到你！