[01:18:47 ERROR]: Could not pass event PlayerInteractEvent to Multiverse-Core v4.3.1-b861
org.bukkit.event.EventException: null
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:306) ~[spigot-1.12.2.jar:git-Spigot-e8ded36-acbc348]
        at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[spigot-1.12.2.jar:git-Spigot-e8ded36-acbc348]
        at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:500) [spigot-1.12.2.jar:git-Spigot-e8ded36-acbc348]
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:485) [spigot-1.12.2.jar:git-Spigot-e8ded36-acbc348]
        at org.bukkit.craftbukkit.v1_12_R1.event.CraftEventFactory.callPlayerInteractEvent(CraftEventFactory.java:235) [spigot-1.12.2.jar:git-Spigot-e8ded36-acbc348]
        at net.minecraft.server.v1_12_R1.PlayerInteractManager.a(PlayerInteractManager.java:458) [spigot-1.12.2.jar:git-Spigot-e8ded36-acbc348]
        at net.minecraft.server.v1_12_R1.PlayerConnection.a(PlayerConnection.java:955) [spigot-1.12.2.jar:git-Spigot-e8ded36-acbc348]
        at net.minecraft.server.v1_12_R1.PacketPlayInUseItem.a(PacketPlayInUseItem.java:37) [spigot-1.12.2.jar:git-Spigot-e8ded36-acbc348]
        at net.minecraft.server.v1_12_R1.PacketPlayInUseItem.a(PacketPlayInUseItem.java:1) [spigot-1.12.2.jar:git-Spigot-e8ded36-acbc348]
        at net.minecraft.server.v1_12_R1.PlayerConnectionUtils$1.run(SourceFile:13) [spigot-1.12.2.jar:git-Spigot-e8ded36-acbc348]
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) [?:?]
        at java.util.concurrent.FutureTask.run(FutureTask.java:264) [?:?]
        at net.minecraft.server.v1_12_R1.SystemUtils.a(SourceFile:46) [spigot-1.12.2.jar:git-Spigot-e8ded36-acbc348]
        at net.minecraft.server.v1_12_R1.MinecraftServer.D(MinecraftServer.java:748) [spigot-1.12.2.jar:git-Spigot-e8ded36-acbc348]
        at net.minecraft.server.v1_12_R1.DedicatedServer.D(DedicatedServer.java:406) [spigot-1.12.2.jar:git-Spigot-e8ded36-acbc348]
        at net.minecraft.server.v1_12_R1.MinecraftServer.C(MinecraftServer.java:679) [spigot-1.12.2.jar:git-Spigot-e8ded36-acbc348]
        at net.minecraft.server.v1_12_R1.MinecraftServer.run(MinecraftServer.java:577) [spigot-1.12.2.jar:git-Spigot-e8ded36-acbc348]
        at java.lang.Thread.run(Thread.java:842) [?:?]
Caused by: java.lang.NoSuchFieldError: END_PORTAL_FRAME
        at com.onarandombox.MultiverseCore.listeners.MVPortalListener.portalForm(MVPortalListener.java:75) ~[?:?]
        at jdk.internal.reflect.GeneratedMethodAccessor125.invoke(Unknown Source) ~[?:?]
        at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?]
        at java.lang.reflect.Method.invoke(Method.java:568) ~[?:?]
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:302) ~[spigot-1.12.2.jar:git-Spigot-e8ded36-acbc348]
        ... 17 more

1.12.2请使用旧版multiverse-core：
https://dev.bukkit.org/projects/multiverse-core/files/2428161

[02:34:38 ERROR]: Could not pass event BlockBreakEvent to BanItem v3.2.5
org.bukkit.event.EventException: null
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:306) ~[spigot-1.12.2.jar:git-Spigot-e8ded36-acbc348]
        at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[spigot-1.12.2.jar:git-Spigot-e8ded36-acbc348]
        at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:500) [spigot-1.12.2.jar:git-Spigot-e8ded36-acbc348]
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:485) [spigot-1.12.2.jar:git-Spigot-e8ded36-acbc348]
        at net.minecraft.server.v1_12_R1.PlayerInteractManager.breakBlock(PlayerInteractManager.java:290) [spigot-1.12.2.jar:git-Spigot-e8ded36-acbc348]
        at net.minecraft.server.v1_12_R1.PlayerInteractManager.a(PlayerInteractManager.java:123) [spigot-1.12.2.jar:git-Spigot-e8ded36-acbc348]
        at net.minecraft.server.v1_12_R1.PlayerConnection.a(PlayerConnection.java:879) [spigot-1.12.2.jar:git-Spigot-e8ded36-acbc348]
        at net.minecraft.server.v1_12_R1.PacketPlayInBlockDig.a(SourceFile:40) [spigot-1.12.2.jar:git-Spigot-e8ded36-acbc348]
        at net.minecraft.server.v1_12_R1.PacketPlayInBlockDig.a(SourceFile:10) [spigot-1.12.2.jar:git-Spigot-e8ded36-acbc348]
        at net.minecraft.server.v1_12_R1.PlayerConnectionUtils$1.run(SourceFile:13) [spigot-1.12.2.jar:git-Spigot-e8ded36-acbc348]
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) [?:?]
        at java.util.concurrent.FutureTask.run(FutureTask.java:264) [?:?]
        at net.minecraft.server.v1_12_R1.SystemUtils.a(SourceFile:46) [spigot-1.12.2.jar:git-Spigot-e8ded36-acbc348]
        at net.minecraft.server.v1_12_R1.MinecraftServer.D(MinecraftServer.java:748) [spigot-1.12.2.jar:git-Spigot-e8ded36-acbc348]
        at net.minecraft.server.v1_12_R1.DedicatedServer.D(DedicatedServer.java:406) [spigot-1.12.2.jar:git-Spigot-e8ded36-acbc348]
        at net.minecraft.server.v1_12_R1.MinecraftServer.C(MinecraftServer.java:679) [spigot-1.12.2.jar:git-Spigot-e8ded36-acbc348]
        at net.minecraft.server.v1_12_R1.MinecraftServer.run(MinecraftServer.java:577) [spigot-1.12.2.jar:git-Spigot-e8ded36-acbc348]
        at java.lang.Thread.run(Thread.java:842) [?:?]
Caused by: java.lang.NoClassDefFoundError: Could not initialize class cc.bukkitPlugin.banitem.commons.util.BukkitUtil
        at cc.bukkitPlugin.banitem.listener.BlockListener.onBlockBreak(BlockListener.java:66) ~[?:?]
        at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?]
        at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) ~[?:?]
        at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?]
        at java.lang.reflect.Method.invoke(Method.java:568) ~[?:?]
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:302) ~[spigot-1.12.2.jar:git-Spigot-e8ded36-acbc348]
        ... 17 more
Caused by: java.lang.ExceptionInInitializerError: Exception java.lang.reflect.InaccessibleObjectException: Unable to make java.lang.invoke.MethodHandles$Lookup(java.lang.Class) accessible: module java.base does not "opens java.lang.invoke" to unnamed module @477aae4c [in thread "Server thread"]
        at java.lang.reflect.AccessibleObject.checkCanSetAccessible(AccessibleObject.java:354) ~[?:?]
        at java.lang.reflect.AccessibleObject.checkCanSetAccessible(AccessibleObject.java:297) ~[?:?]
        at java.lang.reflect.Constructor.checkCanSetAccessible(Constructor.java:188) ~[?:?]
        at java.lang.reflect.Constructor.setAccessible(Constructor.java:181) ~[?:?]
        at cc.bukkitPlugin.banitem.commons.util.reflect.ClassUtil.newInstance(ClassUtil.java:219) ~[?:?]
        at cc.bukkitPlugin.banitem.commons.util.reflect.ClassUtil.newInstance(ClassUtil.java:199) ~[?:?]
        at cc.bukkitPlugin.banitem.commons.util.reflect.ClassUtil.newLookup(ClassUtil.java:427) ~[?:?]
        at cc.bukkitPlugin.banitem.commons.util.reflect.LookupUtil.unreflect(LookupUtil.java:22) ~[?:?]
        at cc.bukkitPlugin.banitem.commons.util.BukkitUtil.<clinit>(BukkitUtil.java:36) ~[?:?]
        at cc.bukkitPlugin.banitem.listener.PlayerListener.checkHoldAndHandle(PlayerListener.java:352) ~[?:?]
        at cc.bukkitPlugin.banitem.listener.PlayerListener.onPlayerSwitchSlot(PlayerListener.java:327) ~[?:?]
        at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?]
        at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) ~[?:?]
        at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?]
        at java.lang.reflect.Method.invoke(Method.java:568) ~[?:?]
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:302) ~[spigot-1.12.2.jar:git-Spigot-e8ded36-acbc348]
        at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[spigot-1.12.2.jar:git-Spigot-e8ded36-acbc348]
        at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:500) ~[spigot-1.12.2.jar:git-Spigot-e8ded36-acbc348]
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:485) ~[spigot-1.12.2.jar:git-Spigot-e8ded36-acbc348]
        at net.minecraft.server.v1_12_R1.PlayerConnection.a(PlayerConnection.java:1165) ~[spigot-1.12.2.jar:git-Spigot-e8ded36-acbc348]
        at net.minecraft.server.v1_12_R1.PacketPlayInHeldItemSlot.a(SourceFile:30) ~[spigot-1.12.2.jar:git-Spigot-e8ded36-acbc348]
        at net.minecraft.server.v1_12_R1.PacketPlayInHeldItemSlot.a(SourceFile:8) ~[spigot-1.12.2.jar:git-Spigot-e8ded36-acbc348]
        ... 9 more
换了还是有

BanItem 是你装的插件吗……
尝试换成BanIt：https://www.mcbbs.net/thread-1174236-1-1.html

这是不一样插件的，把你BanItem 版本降一下
你一个1.12.2的为什么会去想着用最新的mv...bukkit介绍页面的版本支持写的不够清楚吗。

用的服务端整合包，里面都配套的，不是自己找的，哈哈哈。是个小白