[22:22:19] [错误]: null
org.bukkit.command.CommandException: Unhandled exception executing command 'mm' in plugin MythicMobs v5.2.6-0819d467
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:47) ~[spigot-api-1.19.4-R0.1-SNAPSHOT.jar:?]
        at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:149) ~[spigot-api-1.19.4-R0.1-SNAPSHOT.jar:?]
        at org.bukkit.craftbukkit.v1_19_R3.CraftServer.dispatchCommand(CraftServer.java:841) ~[spigot-1.19.4-R0.1-SNAPSHOT.jar:3684-Spigot-41150f3-f770708]
        at org.bukkit.craftbukkit.v1_19_R3.command.BukkitCommandWrapper.run(BukkitCommandWrapper.java:50) ~[spigot-1.19.4-R0.1-SNAPSHOT.jar:3684-Spigot-41150f3-f770708]
        at com.mojang.brigadier.CommandDispatcher.execute(CommandDispatcher.java:264) ~[spigot-1.19.4-R0.1-SNAPSHOT.jar:?]
        at net.minecraft.commands.CommandDispatcher.performCommand(CommandDispatcher.java:312) ~[spigot-1.19.4-R0.1-SNAPSHOT.jar:3684-Spigot-41150f3-f770708]
        at net.minecraft.commands.CommandDispatcher.a(CommandDispatcher.java:296) ~[spigot-1.19.4-R0.1-SNAPSHOT.jar:3684-Spigot-41150f3-f770708]
        at net.minecraft.server.network.PlayerConnection.a(PlayerConnection.java:1949) ~[spigot-1.19.4-R0.1-SNAPSHOT.jar:3684-Spigot-41150f3-f770708]
        at net.minecraft.server.network.PlayerConnection.lambda$18(PlayerConnection.java:1911) ~[spigot-1.19.4-R0.1-SNAPSHOT.jar:3684-Spigot-41150f3-f770708]
        at net.minecraft.util.thread.IAsyncTaskHandler.b(SourceFile:67) ~[spigot-1.19.4-R0.1-SNAPSHOT.jar:3684-Spigot-41150f3-f770708]
        at java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?]
        at net.minecraft.server.TickTask.run(SourceFile:18) ~[spigot-1.19.4-R0.1-SNAPSHOT.jar:3684-Spigot-41150f3-f770708]
        at net.minecraft.util.thread.IAsyncTaskHandler.d(SourceFile:156) ~[spigot-1.19.4-R0.1-SNAPSHOT.jar:3684-Spigot-41150f3-f770708]
        at net.minecraft.util.thread.IAsyncTaskHandlerReentrant.d(SourceFile:23) ~[spigot-1.19.4-R0.1-SNAPSHOT.jar:3684-Spigot-41150f3-f770708]
        at net.minecraft.server.MinecraftServer.b(MinecraftServer.java:1154) ~[spigot-1.19.4-R0.1-SNAPSHOT.jar:3684-Spigot-41150f3-f770708]
        at net.minecraft.server.MinecraftServer.d(MinecraftServer.java:1) ~[spigot-1.19.4-R0.1-SNAPSHOT.jar:3684-Spigot-41150f3-f770708]
        at net.minecraft.util.thread.IAsyncTaskHandler.x(SourceFile:130) ~[spigot-1.19.4-R0.1-SNAPSHOT.jar:3684-Spigot-41150f3-f770708]
        at net.minecraft.server.MinecraftServer.bi(MinecraftServer.java:1133) ~[spigot-1.19.4-R0.1-SNAPSHOT.jar:3684-Spigot-41150f3-f770708]
        at net.minecraft.server.MinecraftServer.x(MinecraftServer.java:1126) ~[spigot-1.19.4-R0.1-SNAPSHOT.jar:3684-Spigot-41150f3-f770708]
        at net.minecraft.util.thread.IAsyncTaskHandler.br(SourceFile:115) ~[spigot-1.19.4-R0.1-SNAPSHOT.jar:3684-Spigot-41150f3-f770708]
        at net.minecraft.server.MinecraftServer.i_(MinecraftServer.java:1109) ~[spigot-1.19.4-R0.1-SNAPSHOT.jar:3684-Spigot-41150f3-f770708]
        at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:1021) ~[spigot-1.19.4-R0.1-SNAPSHOT.jar:3684-Spigot-41150f3-f770708]
        at net.minecraft.server.MinecraftServer.lambda$0(MinecraftServer.java:304) ~[spigot-1.19.4-R0.1-SNAPSHOT.jar:3684-Spigot-41150f3-f770708]
        at java.lang.Thread.run(Thread.java:1623) ~[?:?]
Caused by: java.lang.NullPointerException: Cannot invoke "io.lumine.mythic.api.mobs.MythicMob.getMythicEntity()" because "mm" is null
        at io.lumine.mythic.core.spawning.spawners.MythicSpawner.<init>(MythicSpawner.java:115) ~[%5B神话怪物%5DMythicMobs-5.2.6.jar:?]
        at io.lumine.mythic.core.spawning.spawners.SpawnerManager.createSpawner(SpawnerManager.java:355) ~[%5B神话怪物%5DMythicMobs-5.2.6.jar:?]
        at io.lumine.mythic.bukkit.commands.spawners.CreateCommand.onCommand(CreateCommand.java:105) ~[%5B神话怪物%5DMythicMobs-5.2.6.jar:?]
        at io.lumine.mythic.bukkit.utils.commands.Command.onCommand(Command.java:64) ~[%5B神话怪物%5DMythicMobs-5.2.6.jar:?]
        at io.lumine.mythic.bukkit.utils.commands.Command.onCommand(Command.java:55) ~[%5B神话怪物%5DMythicMobs-5.2.6.jar:?]
        at io.lumine.mythic.bukkit.utils.commands.Command.onCommand(Command.java:61) ~[%5B神话怪物%5DMythicMobs-5.2.6.jar:?]
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:45) ~[spigot-api-1.19.4-R0.1-SNAPSHOT.jar:?]
        ... 23 more

尝试更换版本

这就是最新版本

Caused by: java.lang.NullPointerException: Cannot invoke "io.lumine.mythic.api.mobs.MythicMob.getMythicEntity()" because "mm" is null

获取怪物实体空指针。如果不是你写错配置，那就反馈作者吧