崩服日志求助，连续两次崩服

Description: Exception ticking world

java.util.ConcurrentModificationException: null
        at java.util.ArrayList$ArrayListSpliterator.tryAdvance(ArrayList.java:1363) ~[?:1.8.0_351] {}
        at java.util.stream.ReferencePipeline.forEachWithCancel(ReferencePipeline.java:126) ~[?:1.8.0_351] {}
        at java.util.stream.AbstractPipeline.copyIntoWithCancel(AbstractPipeline.java:499) ~[?:1.8.0_351] {}
        at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:486) ~[?:1.8.0_351] {}
        at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:472) ~[?:1.8.0_351] {}
        at java.util.stream.MatchOps$MatchOp.evaluateSequential(MatchOps.java:230) ~[?:1.8.0_351] {}
        at java.util.stream.MatchOps$MatchOp.evaluateSequential(MatchOps.java:196) ~[?:1.8.0_351] {}
        at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) ~[?:1.8.0_351] {}
        at java.util.stream.ReferencePipeline.anyMatch(ReferencePipeline.java:449) ~[?:1.8.0_351] {}
        at net.minecraft.world.gen.feature.structure.StructureManager.func_235016_a_(StructureManager.java:64) ~[?:?] {re:mixin,re:classloading}
        at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:174) ~[?:1.8.0_351] {}
        at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:175) ~[?:1.8.0_351] {}
        at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:175) ~[?:1.8.0_351] {}
        at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193) ~[?:1.8.0_351] {}
        at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193) ~[?:1.8.0_351] {}
        at java.util.Spliterators$IteratorSpliterator.tryAdvance(Spliterators.java:1812) ~[?:1.8.0_351] {}
        at java.util.stream.ReferencePipeline.forEachWithCancel(ReferencePipeline.java:126) ~[?:1.8.0_351] {}
        at java.util.stream.AbstractPipeline.copyIntoWithCancel(AbstractPipeline.java:499) ~[?:1.8.0_351] {}
        at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:486) ~[?:1.8.0_351] {}
        at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:472) ~[?:1.8.0_351] {}
        at java.util.stream.FindOps$FindOp.evaluateSequential(FindOps.java:152) ~[?:1.8.0_351] {}
        at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) ~[?:1.8.0_351] {}
        at java.util.stream.ReferencePipeline.findFirst(ReferencePipeline.java:464) ~[?:1.8.0_351] {}
        at net.minecraft.world.gen.feature.structure.StructureManager.func_235010_a_(StructureManager.java:67) ~[?:?] {re:mixin,re:classloading}
        at net.minecraftforge.common.world.StructureSpawnManager.getStructureSpawns(StructureSpawnManager.java:102) ~[forge:?] {re:classloading}
        at net.minecraft.world.gen.NoiseChunkGenerator.func_230353_a_(NoiseChunkGenerator.java:591) ~[?:?] {re:mixin,pl:runtimedistcleaner:A,re:computing_frames,pl:runtimedistcleaner:A,re:classloading,pl:mixin:APP:betterendforge.mixins.json:NoiseChunkGeneratorMixin,pl:mixin:APP:mostructures.mixins.json:MixinNoiseChunkGenerator,pl:mixin:A,pl:runtimedistcleaner:A}
        at net.minecraft.world.spawner.WorldEntitySpawner.func_241463_a_(WorldEntitySpawner.java:316) ~[?:?] {re:classloading}
        at net.minecraft.world.spawner.WorldEntitySpawner.func_234976_a_(WorldEntitySpawner.java:312) ~[?:?] {re:classloading}
        at net.minecraft.world.spawner.WorldEntitySpawner.func_234975_a_(WorldEntitySpawner.java:262) ~[?:?] {re:classloading}
        at net.minecraft.world.spawner.WorldEntitySpawner.func_234966_a_(WorldEntitySpawner.java:209) ~[?:?] {re:classloading}
        at net.minecraft.world.spawner.WorldEntitySpawner.func_234967_a_(WorldEntitySpawner.java:168) ~[?:?] {re:classloading}
        at net.minecraft.world.spawner.WorldEntitySpawner.func_234979_a_(WorldEntitySpawner.java:153) ~[?:?] {re:classloading}
        at net.minecraft.world.server.ServerChunkProvider.lambda$tickChunks$6(ServerChunkProvider.java:416) ~[?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:APP:smoothchunk.mixins.json:ServerChunkCacheMixin,pl:mixin:A,pl:runtimedistcleaner:A}
        at java.util.ArrayList.forEach(ArrayList.java:1259) ~[?:1.8.0_351] {}
        at net.minecraft.world.server.ServerChunkProvider.func_217220_m(ServerChunkProvider.java:403) ~[?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:APP:smoothchunk.mixins.json:ServerChunkCacheMixin,pl:mixin:A,pl:runtimedistcleaner:A}
        at net.minecraft.world.server.ServerChunkProvider.func_217207_a(ServerChunkProvider.java:376) ~[?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:APP:smoothchunk.mixins.json:ServerChunkCacheMixin,pl:mixin:A,pl:runtimedistcleaner:A}
        at net.minecraft.world.server.ServerWorld.func_72835_b(ServerWorld.java:448) ~[?:?] {re:mixin,pl:runtimedistcleaner:A,re:classloading,pl:mixin:APP:mine-mine-no-mi.mixins.json:IServerWorldMixin,pl:mixin:APP:abnormals_core.mixins.json:ServerWorldMixin,pl:mixin:A,pl:runtimedistcleaner:A}
        at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:1050) ~[?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:APP:betterendforge.mixins.json:MinecraftServerMixin,pl:mixin:APP:structure_gel.mixins.json:MinecraftServerMixin,pl:mixin:A,pl:runtimedistcleaner:A}
        at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:336) ~[?:?] {re:mixin,pl:accesstransformer:B,re:classloading,pl:accesstransformer:B,pl:mixin:APP:pfm-common.mixins.json:MixinDedicatedServer,pl:mixin:A}
        at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:942) ~[?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:APP:betterendforge.mixins.json:MinecraftServerMixin,pl:mixin:APP:structure_gel.mixins.json:MinecraftServerMixin,pl:mixin:A,pl:runtimedistcleaner:A}
        at net.minecraft.server.MinecraftServer.func_240802_v_(MinecraftServer.java:775) ~[?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:APP:betterendforge.mixins.json:MinecraftServerMixin,pl:mixin:APP:structure_gel.mixins.json:MinecraftServerMixin,pl:mixin:A,pl:runtimedistcleaner:A}
        at net.minecraft.server.MinecraftServer.func_240783_a_(MinecraftServer.java:265) ~[?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:APP:betterendforge.mixins.json:MinecraftServerMixin,pl:mixin:APP:structure_gel.mixins.json:MinecraftServerMixin,pl:mixin:A,pl:runtimedistcleaner:A}
        at java.lang.Thread.run(Thread.java:750) [?:1.8.0_351] {}


A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- Head --
Thread: Server thread
Stacktrace:
        at java.util.ArrayList$ArrayListSpliterator.tryAdvance(ArrayList.java:1363) ~[?:1.8.0_351] {}
        at java.util.stream.ReferencePipeline.forEachWithCancel(ReferencePipeline.java:126) ~[?:1.8.0_351] {}
        at java.util.stream.AbstractPipeline.copyIntoWithCancel(AbstractPipeline.java:499) ~[?:1.8.0_351] {}
        at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:486) ~[?:1.8.0_351] {}
        at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:472) ~[?:1.8.0_351] {}
        at java.util.stream.MatchOps$MatchOp.evaluateSequential(MatchOps.java:230) ~[?:1.8.0_351] {}
        at java.util.stream.MatchOps$MatchOp.evaluateSequential(MatchOps.java:196) ~[?:1.8.0_351] {}
        at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) ~[?:1.8.0_351] {}
        at java.util.stream.ReferencePipeline.anyMatch(ReferencePipeline.java:449) ~[?:1.8.0_351] {}
        at net.minecraft.world.gen.feature.structure.StructureManager.func_235016_a_(StructureManager.java:64) ~[?:?] {re:mixin,re:classloading}
        at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:174) ~[?:1.8.0_351] {}
        at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:175) ~[?:1.8.0_351] {}
        at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:175) ~[?:1.8.0_351] {}
        at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193) ~[?:1.8.0_351] {}
        at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193) ~[?:1.8.0_351] {}
        at java.util.Spliterators$IteratorSpliterator.tryAdvance(Spliterators.java:1812) ~[?:1.8.0_351] {}
        at java.util.stream.ReferencePipeline.forEachWithCancel(ReferencePipeline.java:126) ~[?:1.8.0_351] {}
        at java.util.stream.AbstractPipeline.copyIntoWithCancel(AbstractPipeline.java:499) ~[?:1.8.0_351] {}
        at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:486) ~[?:1.8.0_351] {}
        at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:472) ~[?:1.8.0_351] {}
        at java.util.stream.FindOps$FindOp.evaluateSequential(FindOps.java:152) ~[?:1.8.0_351] {}
        at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) ~[?:1.8.0_351] {}
        at java.util.stream.ReferencePipeline.findFirst(ReferencePipeline.java:464) ~[?:1.8.0_351] {}
        at net.minecraft.world.gen.feature.structure.StructureManager.func_235010_a_(StructureManager.java:67) ~[?:?] {re:mixin,re:classloading}
        at net.minecraftforge.common.world.StructureSpawnManager.getStructureSpawns(StructureSpawnManager.java:102) ~[forge:?] {re:classloading}
        at net.minecraft.world.gen.NoiseChunkGenerator.func_230353_a_(NoiseChunkGenerator.java:591) ~[?:?] {re:mixin,pl:runtimedistcleaner:A,re:computing_frames,pl:runtimedistcleaner:A,re:classloading,pl:mixin:APP:betterendforge.mixins.json:NoiseChunkGeneratorMixin,pl:mixin:APP:mostructures.mixins.json:MixinNoiseChunkGenerator,pl:mixin:A,pl:runtimedistcleaner:A}
        at net.minecraft.world.spawner.WorldEntitySpawner.func_241463_a_(WorldEntitySpawner.java:316) ~[?:?] {re:classloading}
        at net.minecraft.world.spawner.WorldEntitySpawner.func_234976_a_(WorldEntitySpawner.java:312) ~[?:?] {re:classloading}
        at net.minecraft.world.spawner.WorldEntitySpawner.func_234975_a_(WorldEntitySpawner.java:262) ~[?:?] {re:classloading}
        at net.minecraft.world.spawner.WorldEntitySpawner.func_234966_a_(WorldEntitySpawner.java:209) ~[?:?] {re:classloading}
        at net.minecraft.world.spawner.WorldEntitySpawner.func_234967_a_(WorldEntitySpawner.java:168) ~[?:?] {re:classloading}
        at net.minecraft.world.spawner.WorldEntitySpawner.func_234979_a_(WorldEntitySpawner.java:153) ~[?:?] {re:classloading}
        at net.minecraft.world.server.ServerChunkProvider.lambda$tickChunks$6(ServerChunkProvider.java:416) ~[?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:APP:smoothchunk.mixins.json:ServerChunkCacheMixin,pl:mixin:A,pl:runtimedistcleaner:A}
        at java.util.ArrayList.forEach(ArrayList.java:1259) ~[?:1.8.0_351] {}
        at net.minecraft.world.server.ServerChunkProvider.func_217220_m(ServerChunkProvider.java:403) ~[?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:APP:smoothchunk.mixins.json:ServerChunkCacheMixin,pl:mixin:A,pl:runtimedistcleaner:A}
        at net.minecraft.world.server.ServerChunkProvider.func_217207_a(ServerChunkProvider.java:376) ~[?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:APP:smoothchunk.mixins.json:ServerChunkCacheMixin,pl:mixin:A,pl:runtimedistcleaner:A}
        at net.minecraft.world.server.ServerWorld.func_72835_b(ServerWorld.java:448) ~[?:?] {re:mixin,pl:runtimedistcleaner:A,re:classloading,pl:mixin:APP:mine-mine-no-mi.mixins.json:IServerWorldMixin,pl:mixin:APP:abnormals_core.mixins.json:ServerWorldMixin,pl:mixin:A,pl:runtimedistcleaner:A}
-- Affected level --
Details:
        All players: 8 total; [ServerPlayerEntity['xiaoluan'/71405597, l='ServerLevel[world]', x=5593.50, y=71.06, z=8223.21](TextComponent{text='xiaoluan', siblings=[], style=Style{ color=null, bold=null, italic=null, underlined=null, strikethrough=null, obfuscated=null, clickEvent=null, hoverEvent=null, insertion=null, font=minecraft:default}} at 5593.5,71.0625,8223.212050783073), ServerPlayerEntity['Nmi_da_da'/160494386, l='ServerLevel[world]', x=5594.50, y=70.01, z=8225.50](TextComponent{text='Nmi_da_da', siblings=[], style=Style{ color=null, bold=null, italic=null, underlined=null, strikethrough=null, obfuscated=null, clickEvent=null, hoverEvent=null, insertion=null, font=minecraft:default}} at 5594.5,70.01000061035157,8225.5), ServerPlayerEntity['7117'/168638287, l='ServerLevel[world]', x=8742.51, y=79.00, z=-6064.71](TextComponent{text='7117', siblings=[], style=Style{ color=null, bold=null, italic=null, underlined=null, strikethrough=null, obfuscated=null, clickEvent=null, hoverEvent=null, insertion=null, font=minecraft:default}} at 8742.51027736324,79.00133597911214,-6064.70826864157), ServerPlayerEntity['kun_kun'/164332141, l='ServerLevel[world]', x=5593.50, y=70.01, z=8222.50](TextComponent{text='kun_kun', siblings=[], style=Style{ color=null, bold=null, italic=null, underlined=null, strikethrough=null, obfuscated=null, clickEvent=null, hoverEvent=null, insertion=null, font=minecraft:default}} at 5593.5,70.01000061035157,8222.5), ServerPlayerEntity['852650eee'/168958968, l='ServerLevel[world]', x=5593.50, y=70.00, z=8226.50](TextComponent{text='852650eee', siblings=[], style=Style{ color=null, bold=null, italic=null, underlined=null, strikethrough=null, obfuscated=null, clickEvent=null, hoverEvent=null, insertion=null, font=minecraft:default}} at 5593.5,70.0,8226.5), ServerPlayerEntity['xunuo'/137278410, l='ServerLevel[world]', x=5594.50, y=70.01, z=8222.50](TextComponent{text='xunuo', siblings=[], style=Style{ color=null, bold=null, italic=null, underlined=null, strikethrough=null, obfuscated=null, clickEvent=null, hoverEvent=null, insertion=null, font=minecraft:default}} at 5594.5,70.01000061035157,8222.5), ServerPlayerEntity['zymm'/159279053, l='ServerLevel[world]', x=-4293.33, y=98.64, z=6652.20](TextComponent{text='zymm', siblings=[], style=Style{ color=null, bold=null, italic=null, underlined=null, strikethrough=null, obfuscated=null, clickEvent=null, hoverEvent=null, insertion=null, font=minecraft:default}} at -4293.333573321409,98.64392079171627,6652.200697551732), ServerPlayerEntity['lizizi'/80959564, l='ServerLevel[world]', x=5595.50, y=70.01, z=8223.50](TextComponent{text='lizizi', siblings=[], style=Style{ color=null, bold=null, italic=null, underlined=null, strikethrough=null, obfuscated=null, clickEvent=null, hoverEvent=null, insertion=null, font=minecraft:default}} at 5595.5,70.01000061035157,8223.5)]
        Chunk stats: ServerChunkCache: 6986
        Level dimension: minecraft:overworld
        Level spawn location: World: (-112,70,-254), Chunk: (at 0,4,2 in -7,-16; contains blocks -112,0,-256 to -97,255,-241), Region: (-1,-1; contains chunks -32,-32 to -1,-1, blocks -512,0,-512 to -1,255,-1)
        Level time: 1321192 game time, 1123201 day time
        Level name: world
        Level game mode: Game mode: survival (ID 0). Hardcore: false. Cheats: false
        Level weather: Rain time: 65891 (now: false), thunder time: 87414 (now: false)
        Known server brands: forge
        Level was modded: true
        Level storage version: 0x04ABD - Anvil
Stacktrace:
        at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:1050) ~[?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:APP:betterendforge.mixins.json:MinecraftServerMixin,pl:mixin:APP:structure_gel.mixins.json:MinecraftServerMixin,pl:mixin:A,pl:runtimedistcleaner:A}
        at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:336) ~[?:?] {re:mixin,pl:accesstransformer:B,re:classloading,pl:accesstransformer:B,pl:mixin:APP:pfm-common.mixins.json:MixinDedicatedServer,pl:mixin:A}
        at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:942) ~[?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:APP:betterendforge.mixins.json:MinecraftServerMixin,pl:mixin:APP:structure_gel.mixins.json:MinecraftServerMixin,pl:mixin:A,pl:runtimedistcleaner:A}
        at net.minecraft.server.MinecraftServer.func_240802_v_(MinecraftServer.java:775) ~[?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:APP:betterendforge.mixins.json:MinecraftServerMixin,pl:mixin:APP:structure_gel.mixins.json:MinecraftServerMixin,pl:mixin:A,pl:runtimedistcleaner:A}
        at net.minecraft.server.MinecraftServer.func_240783_a_(MinecraftServer.java:265) ~[?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:APP:betterendforge.mixins.json:MinecraftServerMixin,pl:mixin:APP:structure_gel.mixins.json:MinecraftServerMixin,pl:mixin:A,pl:runtimedistcleaner:A}
        at java.lang.Thread.run(Thread.java:750) [?:1.8.0_351] {}

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