有,
[19:09:23] [Server thread/INFO]: [Zombies] Enabling Zombies v1.7.6
[19:09:24] [Server thread/WARN]: java.lang.ClassNotFoundException: net.minecraft.network.protocol.game.ClientboundSystemChatPacket
[19:09:24] [Server thread/WARN]: at org.bukkit.plugin.java.PluginClassLoader.loadClass0(PluginClassLoader.java:147)
[19:09:24] [Server thread/WARN]: at org.bukkit.plugin.java.PluginClassLoader.loadClass(PluginClassLoader.java:99)
[19:09:24] [Server thread/WARN]: at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:520)
[19:09:24] [Server thread/WARN]: at java.base/java.lang.Class.forName0(Native Method)
[19:09:24] [Server thread/WARN]: at java.base/java.lang.Class.forName(Class.java:375)
[19:09:24] [Server thread/WARN]: at Utils.Reflection.getClass(Reflection.java:76)
[19:09:24] [Server thread/WARN]: at Utils.Reflection.getMinecraftClass(Reflection.java:18)
[19:09:24] [Server thread/WARN]: at ActionBarAPI.ActionBar.<init>(ActionBar.java:36)
[19:09:24] [Server thread/WARN]: at Utils.EntityUtils$3.<init>(EntityUtils.java:162)
[19:09:24] [Server thread/WARN]: at Utils.EntityUtils.initialize(EntityUtils.java:160)
[19:09:24] [Server thread/WARN]: at Zombies.Main.onEnable(Main.java:44)
[19:09:24] [Server thread/WARN]: at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:264)
[19:09:24] [Server thread/WARN]: at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:342)
[19:09:24] [Server thread/WARN]: at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:480)
[19:09:24] [Server thread/WARN]: at org.bukkit.craftbukkit.v1_18_R1.CraftServer.enablePlugin(CraftServer.java:525)
[19:09:24] [Server thread/WARN]: at org.bukkit.craftbukkit.v1_18_R1.CraftServer.enablePlugins(CraftServer.java:439)
[19:09:24] [Server thread/WARN]: at net.minecraft.server.MinecraftServer.loadWorld0(MinecraftServer.java:612)
[19:09:24] [Server thread/WARN]: at net.minecraft.server.MinecraftServer.loadLevel(MinecraftServer.java:414)
[19:09:24] [Server thread/WARN]: at net.minecraft.server.dedicated.DedicatedServer.e(DedicatedServer.java:262)
[19:09:24] [Server thread/WARN]: at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:994)
[19:09:24] [Server thread/WARN]: at net.minecraft.server.MinecraftServer.lambda$0(MinecraftServer.java:304)
[19:09:24] [Server thread/WARN]: at java.base/java.lang.Thread.run(Thread.java:833)
[19:09:24] [Server thread/WARN]: java.lang.NullPointerException: Cannot invoke "java.lang.Class.getConstructor(java.lang.Class[])" because "<local2>" is null
[19:09:24] [Server thread/WARN]: at ActionBarAPI.ActionBar.<init>(ActionBar.java:47)
[19:09:24] [Server thread/WARN]: at Utils.EntityUtils$3.<init>(EntityUtils.java:162)
[19:09:24] [Server thread/WARN]: at Utils.EntityUtils.initialize(EntityUtils.java:160)
[19:09:24] [Server thread/WARN]: at Zombies.Main.onEnable(Main.java:44)
[19:09:24] [Server thread/WARN]: at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:264)
[19:09:24] [Server thread/WARN]: at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:342)
[19:09:24] [Server thread/WARN]: at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:480)
[19:09:24] [Server thread/WARN]: at org.bukkit.craftbukkit.v1_18_R1.CraftServer.enablePlugin(CraftServer.java:525)
[19:09:24] [Server thread/WARN]: at org.bukkit.craftbukkit.v1_18_R1.CraftServer.enablePlugins(CraftServer.java:439)
[19:09:24] [Server thread/WARN]: at net.minecraft.server.MinecraftServer.loadWorld0(MinecraftServer.java:612)
[19:09:24] [Server thread/WARN]: at net.minecraft.server.MinecraftServer.loadLevel(MinecraftServer.java:414)
[19:09:24] [Server thread/WARN]: at net.minecraft.server.dedicated.DedicatedServer.e(DedicatedServer.java:262)
[19:09:24] [Server thread/WARN]: at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:994)
[19:09:24] [Server thread/WARN]: at net.minecraft.server.MinecraftServer.lambda$0(MinecraftServer.java:304)
[19:09:24] [Server thread/WARN]: at java.base/java.lang.Thread.run(Thread.java:833)