以下是崩溃的日志

---- Minecraft Crash Report ----
// I let you down. Sorry :(

Time: 2/1/20 5:54 PM
Description: Exception in server tick loop

java.lang.NoClassDefFoundError: net/minecraft/client/Minecraft
        at com.cemerson.logicaldrops.entity.RealisticEntityBehaviorHandler.getRandom(RealisticEntityBehaviorHandler.java:317)
        at com.cemerson.logicaldrops.entity.RealisticEntityBehaviorHandler.playerKilledPig(RealisticEntityBehaviorHandler.java:160)
        at cpw.mods.fml.common.eventhandler.ASMEventHandler_13_RealisticEntityBehaviorHandler_playerKilledPig_LivingDeathEvent.invoke(.dynamic)
        at cpw.mods.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:54)
        at cpw.mods.fml.common.eventhandler.EventBus.post(EventBus.java:140)
        at net.minecraftforge.common.ForgeHooks.onLivingDeath(ForgeHooks.java:310)
        at net.minecraft.entity.EntityLivingBase.func_70645_a(EntityLivingBase.java:1016)
        at net.minecraft.entity.EntityLivingBase.func_70097_a(EntityLivingBase.java:980)
        at net.minecraft.entity.passive.EntityAnimal.func_70097_a(SourceFile:145)
        at net.minecraft.entity.player.EntityPlayer.func_71059_n(EntityPlayer.java:1405)
        at net.minecraft.entity.player.EntityPlayerMP.localAttackTargetEntityWithCurrentItem(EntityPlayerMP.java)
        at api.player.server.ServerPlayerAPI.attackTargetEntityWithCurrentItem(Unknown Source)
        at net.minecraft.entity.player.EntityPlayerMP.func_71059_n(EntityPlayerMP.java)
        at net.minecraft.network.NetHandlerPlayServer.func_147340_a(NetHandlerPlayServer.java:1378)
        at net.minecraft.network.play.client.C02PacketUseEntity.func_148833_a(SourceFile:55)
        at net.minecraft.network.play.client.C02PacketUseEntity.func_148833_a(SourceFile:10)
        at net.minecraft.network.NetworkManager.func_74428_b(NetworkManager.java:245)
        at net.minecraft.network.NetworkSystem.func_151269_c(NetworkSystem.java:176)
        at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:989)
        at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:458)
        at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:806)
        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:665)
        at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.ClassNotFoundException: net.minecraft.client.Minecraft
        at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:191)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:419)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:352)
        ... 23 more
Caused by: java.lang.RuntimeException: Attempted to load class bao for invalid side SERVER
        at cpw.mods.fml.common.asm.transformers.SideTransformer.transform(SideTransformer.java:51)
        at net.minecraft.launchwrapper.LaunchClassLoader.runTransformers(LaunchClassLoader.java:279)
        at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:176)
        ... 25 more


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

-- System Details --
Details:
        Minecraft Version: 1.7.10
        KCauldron Version: cc.uraniummc:Uranium:1710-dev-4-B210 UNOFFICIAL DON'T REPORT THIS CRASH
        Plugins:
        Disabled Plugins:
        Operating System: Linux (amd64) version 4.4.0-170-generic
        Java Version: 1.8.0_242, Private Build
        Java VM Version: OpenJDK 64-Bit Server VM (mixed mode), Private Build
        Memory: 447168616 bytes (426 MB) / 1038024704 bytes (989 MB) up to 1763704832 bytes (1682 MB)
        JVM Flags: 2 total; -Xms1024m -Xmx1740m
        AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
        IntCache: cache: 0, tcache: 0, allocated: 13, tallocated: 96
        FML: MCP v9.05 FML v7.10.99.99 Minecraft Forge 10.13.4.1614 14 mods loaded, 14 mods active
        States: 'U' = Unloaded 'L' = Loaded 'C' = Constructed 'H' = Pre-initialized 'I' = Initialized 'J' = Post-initialized 'A' = Available 'D' = Disabled 'E' = Errored
        UCHIJAAAA        mcp{9.05} [Minecraft Coder Pack] (minecraft.jar)
        UCHIJAAAA        FML{7.10.99.99} [Forge Mod Loader] (server.jar)
        UCHIJAAAA        Forge{10.13.4.1614} [Minecraft Forge] (server.jar)
        UCHIJAAAA        kimagine{0.2} [KImagine] (minecraft.jar)
        UCHIJAAAA        UraniumPlus{${UMP_VER}} [Added title and actionbar support for client and server] (server.jar)
        UCHIJAAAA        CodeChickenCore{1.0.7.47} [CodeChicken Core] (minecraft.jar)
        UCHIJAAAA        PlayerAPI{1.2} [Player API] (minecraft.jar)
        UCHIJAAAA        gokiStats{1.0.0} [gokiStats] ([RPG基础技能]Core-gokiStats-1.0 cn_via_.jar)
        UCHIJAAAA        pcb{1.3} [Portable Craft Bench] ([便携工作台][1.7.10]Portable-Craft-Bench-Mod.jar)
        UCHIJAAAA        zeldaswordskills{1.7.10-2.4} [Zelda Sword Skills] ([塞尔达剑技]ZeldaSwordSkills-2.4.jar)
        UCHIJAAAA        cfm{3.4.8} [MrCrayfish's Furniture] ([家具]MrCrayfish%27s Furniture-3.4.8.jar)
        UCHIJAAAA        logicaldrops{0.9.4} [Logical Drops] ([掉落优化]EM3R50N-LogicalDrops.1.7.10-0.9.4.jar)
        UCHIJAAAA        BiomesOPlenty{2.1.0} [Biomes O' Plenty] ([更多生物群系]BiomesOPlenty-1.7.10-2.1.0.1067-universal-CN.jar)
        UCHIJAAAA        do-or-die{1.0.0} [Do-Or-Die] ([背水一战]Do Or Die-1.7.10-1.0.0.jar)
        Profiler Position: N/A (disabled)
        Vec3 Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
        Player Count: 1 / 20; [EntityPlayerMP['Sanchi'/2986, l='world', x=-36.44, y=73.00, z=970.08](Sanchi at -36.43507100488562,73.0,970.0777261621473)]
        Is Modded: Definitely; Server brand changed to 'uranium,kcauldron,cauldron,craftbukkit,mcpc,fml,forge'
        Type: Dedicated Server (map_server.txt)

删除 [掉落优化]EM3R50N-LogicalDrops.1.7.10-0.9.4.jar

这个 mod 似乎调用了客户端的类

其实崩溃了两次，两次都和与生物的交互相关，第一次攻击僵尸，第二次攻击猪，请问是如何看出是这个mod的问题的？我现在去删除那个mod试试看。

问题解决了，但是游戏内各个生物的模型，部分会出现闪烁的问题，这个是mod造成的还是服务器导致的？