[23:16:17] [Server thread/ERROR] [ne.mi.ev.EventSubclassTransformer/EVENTBUS]: Could not find parent net/minecraft/client/renderer/entity/model/EntityModel for class net/mcreator/bbb/entity/PiratesEntity$Modelpillagergunner in classloader cpw.mods.modlauncher.TransformingClassLoader@4d525897 on thread Thread[Server thread,5,SERVER]
[23:16:17] [Server thread/ERROR] [ne.mi.ev.EventSubclassTransformer/EVENTBUS]: An error occurred building event handler
java.lang.ClassNotFoundException: net.minecraft.client.renderer.entity.model.EntityModel
        at java.lang.ClassLoader.findClass(Unknown Source) ~[?:1.8.0_261] {}
        at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_261] {}
        at cpw.mods.modlauncher.TransformingClassLoader.loadClass(TransformingClassLoader.java:106) ~[modlauncher-8.0.9.jar:?] {re:classloading}
        at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_261] {}
        at net.minecraftforge.eventbus.EventSubclassTransformer.buildEvents(EventSubclassTransformer.java:62) ~[eventbus-4.0.0.jar:?] {}
        at net.minecraftforge.eventbus.EventSubclassTransformer.transform(EventSubclassTransformer.java:44) ~[eventbus-4.0.0.jar:?] {}
        at net.minecraftforge.eventbus.EventBusEngine.processClass(EventBusEngine.java:21) ~[eventbus-4.0.0.jar:?] {}
        at net.minecraftforge.eventbus.service.ModLauncherService.processClassWithFlags(ModLauncherService.java:20) ~[eventbus-4.0.0.jar:4.0.0+65+master.6080a3f] {}
        at cpw.mods.modlauncher.LaunchPluginHandler.offerClassNodeToPlugins(LaunchPluginHandler.java:85) ~[modlauncher-8.0.9.jar:?] {}
        at cpw.mods.modlauncher.ClassTransformer.transform(ClassTransformer.java:120) ~[modlauncher-8.0.9.jar:?] {}
        at cpw.mods.modlauncher.TransformingClassLoader$DelegatedClassLoader.findClass(TransformingClassLoader.java:265) ~[modlauncher-8.0.9.jar:?] {}
        at cpw.mods.modlauncher.TransformingClassLoader.loadClass(TransformingClassLoader.java:136) ~[modlauncher-8.0.9.jar:?] {re:classloading}
        at cpw.mods.modlauncher.TransformingClassLoader.loadClass(TransformingClassLoader.java:98) ~[modlauncher-8.0.9.jar:?] {re:classloading}
        at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_261] {}
        at java.lang.Class.getDeclaringClass0(Native Method) ~[?:1.8.0_261] {}
        at java.lang.Class.getDeclaringClass(Unknown Source) ~[?:1.8.0_261] {}
        at java.lang.Class.getEnclosingClass(Unknown Source) ~[?:1.8.0_261] {}
        at java.lang.Class.getSimpleBinaryName(Unknown Source) ~[?:1.8.0_261] {}
        at java.lang.Class.getSimpleName(Unknown Source) ~[?:1.8.0_261] {}
        at net.minecraft.entity.Entity.toString(Entity.java:2091) ~[?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,xf:fml:astralsorcery:add_custom_entity_collision,pl:mixin:APP:randompatches.mixins.json:EntityMixin,pl:mixin:APP:betterendforge.mixins.json:EntityMixin,pl:mixin:APP:structure_gel.mixins.json:EntityMixin,pl:mixin:APP:spiderstpo.mixins.json:EntityMixin,pl:mixin:APP:quark.mixins.json:EntityMixin,pl:mixin:APP:assets/shetiphiancore/shetiphiancore.mixins.json:MixinEntity,pl:mixin:A,pl:runtimedistcleaner:A}
        at com.natamus.justmobheads.util.MobHeads.getName(MobHeads.java:71) ~[justmobheads:1.0] {re:classloading}
        at com.natamus.justmobheads.events.HeadDropEvent.mobItemDrop(HeadDropEvent.java:36) ~[justmobheads:1.0] {re:classloading}