[Server thread/ERROR]: Encountered an unexpected exception
net.minecraft.util.ReportedException: Ticking block entity
        at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:991) ~[MinecraftServer.class:?]
        at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:475) ~[nz.class:?]
        at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:834) ~[MinecraftServer.class:?]
        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:693) [MinecraftServer.class:?]
        at java.lang.Thread.run(Unknown Source) [?:1.8.0_211]
Caused by: java.lang.NullPointerException
        at com.pixelmonmod.pixelmon.entities.pixelmon.stats.Stats.calculateHP(Stats.java:73) ~[Stats.class:1.12.2-8.4.2]
        at com.pixelmonmod.pixelmon.entities.pixelmon.stats.Stats.setLevelStats(Stats.java:41) ~[Stats.class:1.12.2-8.4.2]
        at com.pixelmonmod.pixelmon.api.pokemon.Pokemon.setNature(Pokemon.java:745) ~[Pokemon.class:1.12.2-8.4.2]
        at com.pixelmonmod.pixelmon.api.pokemon.Pokemon.initialize(Pokemon.java:280) ~[Pokemon.class:1.12.2-8.4.2]
        at com.pixelmonmod.pixelmon.api.pokemon.PokemonSpec.create(PokemonSpec.java:678) ~[PokemonSpec.class:1.12.2-8.4.2]
        at com.pixelmonmod.pixelmon.util.helpers.BreedLogic.makeRandomEgg(BreedLogic.java:86) ~[BreedLogic.class:1.12.2-8.4.2]
        at com.pixelmonmod.pixelmon.util.helpers.BreedLogic.makeEgg(BreedLogic.java:108) ~[BreedLogic.class:1.12.2-8.4.2]
        at com.pixelmonmod.pixelmon.blocks.tileEntities.TileEntityRanchBlock.updateStatus(TileEntityRanchBlock.java:240) ~[TileEntityRanchBlock.class:1.12.2-8.4.2]
        at com.pixelmonmod.pixelmon.blocks.tileEntities.TileEntityRanchBlock.updateBreeding(TileEntityRanchBlock.java:222) ~[TileEntityRanchBlock.class:1.12.2-8.4.2]
        at java.util.ArrayList.forEach(Unknown Source) ~[?:1.8.0_211]
        at com.pixelmonmod.pixelmon.blocks.tileEntities.TileEntityRanchBlock.func_73660_a(TileEntityRanchBlock.java:168) ~[TileEntityRanchBlock.class:1.12.2-8.4.2]
        at net.minecraft.world.World.func_72939_s(World.java:2122) ~[amu.class:?]
        at net.minecraft.world.WorldServer.func_72939_s(WorldServer.java:742) ~[oo.class:?]
        at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:984) ~[MinecraftServer.class:?]
        ... 4 more

这个问题导致服务器崩溃重启  这是重启前弹出的报错

Ticking block entity


打开以下文件:
将选项 "removeErroringEntities" 与 "removeErroringTileEntities" 设置为true；
可使forge自动移除错误实体、方块；