org.bukkit.event.EventException: null
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:310) ~[spigot-api-1.20.4-R0.1-SNAPSHOT.jar:?]
        at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:70) ~[spigot-api-1.20.4-R0.1-SNAPSHOT.jar:?]
        at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:589) ~[spigot-api-1.20.4-R0.1-SNAPSHOT.jar:?]
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:576) ~[spigot-api-1.20.4-R0.1-SNAPSHOT.jar:?]
        at net.minecraft.server.players.PlayerList.a(PlayerList.java:295) ~[spigot-1.20.4-R0.1-SNAPSHOT.jar:4060-Spigot-e9ec548-366c3ca]
        at net.minecraft.server.network.ServerConfigurationPacketListenerImpl.a(ServerConfigurationPacketListenerImpl.java:129) ~[spigot-1.20.4-R0.1-SNAPSHOT.jar:4060-Spigot-e9ec548-366c3ca]
        at net.minecraft.network.protocol.configuration.ServerboundFinishConfigurationPacket.a(SourceFile:20) ~[spigot-1.20.4-R0.1-SNAPSHOT.jar:4060-Spigot-e9ec548-366c3ca]
        at net.minecraft.network.protocol.configuration.ServerboundFinishConfigurationPacket.a(SourceFile:7) ~[spigot-1.20.4-R0.1-SNAPSHOT.jar:4060-Spigot-e9ec548-366c3ca]
        at net.minecraft.network.protocol.PlayerConnectionUtils.lambda$0(PlayerConnectionUtils.java:33) ~[spigot-1.20.4-R0.1-SNAPSHOT.jar:4060-Spigot-e9ec548-366c3ca]
        at net.minecraft.server.TickTask.run(SourceFile:18) ~[spigot-1.20.4-R0.1-SNAPSHOT.jar:4060-Spigot-e9ec548-366c3ca]
        at net.minecraft.util.thread.IAsyncTaskHandler.d(SourceFile:156) ~[spigot-1.20.4-R0.1-SNAPSHOT.jar:4060-Spigot-e9ec548-366c3ca]
        at net.minecraft.util.thread.IAsyncTaskHandlerReentrant.d(SourceFile:23) ~[spigot-1.20.4-R0.1-SNAPSHOT.jar:4060-Spigot-e9ec548-366c3ca]
        at net.minecraft.server.MinecraftServer.b(MinecraftServer.java:1191) ~[spigot-1.20.4-R0.1-SNAPSHOT.jar:4060-Spigot-e9ec548-366c3ca]
        at net.minecraft.server.MinecraftServer.d(MinecraftServer.java:1) ~[spigot-1.20.4-R0.1-SNAPSHOT.jar:4060-Spigot-e9ec548-366c3ca]
        at net.minecraft.util.thread.IAsyncTaskHandler.x(SourceFile:130) ~[spigot-1.20.4-R0.1-SNAPSHOT.jar:4060-Spigot-e9ec548-366c3ca]
        at net.minecraft.server.MinecraftServer.bl(MinecraftServer.java:1170) ~[spigot-1.20.4-R0.1-SNAPSHOT.jar:4060-Spigot-e9ec548-366c3ca]
        at net.minecraft.server.MinecraftServer.x(MinecraftServer.java:1163) ~[spigot-1.20.4-R0.1-SNAPSHOT.jar:4060-Spigot-e9ec548-366c3ca]
        at net.minecraft.util.thread.IAsyncTaskHandler.c(SourceFile:139) ~[spigot-1.20.4-R0.1-SNAPSHOT.jar:4060-Spigot-e9ec548-366c3ca]
        at net.minecraft.server.MinecraftServer.w_(MinecraftServer.java:1147) ~[spigot-1.20.4-R0.1-SNAPSHOT.jar:4060-Spigot-e9ec548-366c3ca]
        at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:1060) ~[spigot-1.20.4-R0.1-SNAPSHOT.jar:4060-Spigot-e9ec548-366c3ca]
        at net.minecraft.server.MinecraftServer.lambda$0(MinecraftServer.java:304) ~[spigot-1.20.4-R0.1-SNAPSHOT.jar:4060-Spigot-e9ec548-366c3ca]
        at java.lang.Thread.run(Thread.java:840) ~[?:?]
Caused by: dev.selena.libs.gson.JsonIOException: Failed making field 'java.util.Random#seed' accessible; either increase its visibility or write a custom TypeAdapter for its declaring type.
        at dev.selena.libs.gson.internal.reflect.ReflectionHelper.makeAccessible(ReflectionHelper.java:38) ~[?:?]
        at dev.selena.libs.gson.internal.bind.ReflectiveTypeAdapterFactory.getBoundFields(ReflectiveTypeAdapterFactory.java:286) ~[?:?]
        at dev.selena.libs.gson.internal.bind.ReflectiveTypeAdapterFactory.create(ReflectiveTypeAdapterFactory.java:130) ~[?:?]
        at dev.selena.libs.gson.Gson.getAdapter(Gson.java:556) ~[?:?]
        at dev.selena.libs.gson.internal.bind.ReflectiveTypeAdapterFactory.createBoundField(ReflectiveTypeAdapterFactory.java:160) ~[?:?]
        at dev.selena.libs.gson.internal.bind.ReflectiveTypeAdapterFactory.getBoundFields(ReflectiveTypeAdapterFactory.java:294) ~[?:?]
        at dev.selena.libs.gson.internal.bind.ReflectiveTypeAdapterFactory.create(ReflectiveTypeAdapterFactory.java:130) ~[?:?]
        at dev.selena.libs.gson.Gson.getAdapter(Gson.java:556) ~[?:?]
        at dev.selena.libs.gson.internal.bind.ReflectiveTypeAdapterFactory.createBoundField(ReflectiveTypeAdapterFactory.java:160) ~[?:?]
        at dev.selena.libs.gson.internal.bind.ReflectiveTypeAdapterFactory.getBoundFields(ReflectiveTypeAdapterFactory.java:294) ~[?:?]
        at dev.selena.libs.gson.internal.bind.ReflectiveTypeAdapterFactory.create(ReflectiveTypeAdapterFactory.java:130) ~[?:?]
        at dev.selena.libs.gson.Gson.getAdapter(Gson.java:556) ~[?:?]
        at dev.selena.libs.gson.Gson.toJson(Gson.java:834) ~[?:?]
        at dev.selena.libs.gson.Gson.toJson(Gson.java:812) ~[?:?]
        at dev.selena.libs.gson.Gson.toJson(Gson.java:759) ~[?:?]
        at dev.selena.libs.gson.Gson.toJson(Gson.java:736) ~[?:?]
        at dev.selena.luacore.utils.text.LuaMessageUtils.json_dump(LuaMessageUtils.java:45) ~[?:?]
        at dev.selena.luacore.utils.items.ItemBuilder.build(ItemBuilder.java:386) ~[?:?]
        at dev.selena.tests.LuaTest.onJoin(LuaTest.java:90) ~[?:?]
        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:306) ~[spigot-api-1.20.4-R0.1-SNAPSHOT.jar:?]
        ... 21 more
Caused by: java.lang.reflect.InaccessibleObjectException: Unable to make field private final java.util.concurrent.atomic.AtomicLong java.util.Random.seed accessible: module java.base does not "opens java.util" to unnamed module @749eb569
        at java.lang.reflect.AccessibleObject.checkCanSetAccessible(AccessibleObject.java:354) ~[?:?]
        at java.lang.reflect.AccessibleObject.checkCanSetAccessible(AccessibleObject.java:297) ~[?:?]
        at java.lang.reflect.Field.checkCanSetAccessible(Field.java:178) ~[?:?]
        at java.lang.reflect.Field.setAccessible(Field.java:172) ~[?:?]
        at dev.selena.libs.gson.internal.reflect.ReflectionHelper.makeAccessible(ReflectionHelper.java:35) ~[?:?]
        at dev.selena.libs.gson.internal.bind.ReflectiveTypeAdapterFactory.getBoundFields(ReflectiveTypeAdapterFactory.java:286) ~[?:?]
        at dev.selena.libs.gson.internal.bind.ReflectiveTypeAdapterFactory.create(ReflectiveTypeAdapterFactory.java:130) ~[?:?]
        at dev.selena.libs.gson.Gson.getAdapter(Gson.java:556) ~[?:?]
        at dev.selena.libs.gson.internal.bind.ReflectiveTypeAdapterFactory.createBoundField(ReflectiveTypeAdapterFactory.java:160) ~[?:?]
        at dev.selena.libs.gson.internal.bind.ReflectiveTypeAdapterFactory.getBoundFields(ReflectiveTypeAdapterFactory.java:294) ~[?:?]
        at dev.selena.libs.gson.internal.bind.ReflectiveTypeAdapterFactory.create(ReflectiveTypeAdapterFactory.java:130) ~[?:?]
        at dev.selena.libs.gson.Gson.getAdapter(Gson.java:556) ~[?:?]
        at dev.selena.libs.gson.internal.bind.ReflectiveTypeAdapterFactory.createBoundField(ReflectiveTypeAdapterFactory.java:160) ~[?:?]
        at dev.selena.libs.gson.internal.bind.ReflectiveTypeAdapterFactory.getBoundFields(ReflectiveTypeAdapterFactory.java:294) ~[?:?]
        at dev.selena.libs.gson.internal.bind.ReflectiveTypeAdapterFactory.create(ReflectiveTypeAdapterFactory.java:130) ~[?:?]
        at dev.selena.libs.gson.Gson.getAdapter(Gson.java:556) ~[?:?]
        at dev.selena.libs.gson.Gson.toJson(Gson.java:834) ~[?:?]
        at dev.selena.libs.gson.Gson.toJson(Gson.java:812) ~[?:?]
        at dev.selena.libs.gson.Gson.toJson(Gson.java:759) ~[?:?]
        at dev.selena.libs.gson.Gson.toJson(Gson.java:736) ~[?:?]
        at dev.selena.luacore.utils.text.LuaMessageUtils.json_dump(LuaMessageUtils.java:45) ~[?:?]
        at dev.selena.luacore.utils.items.ItemBuilder.build(ItemBuilder.java:386) ~[?:?]
        at dev.selena.tests.LuaTest.onJoin(LuaTest.java:90) ~[?:?]
        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:306) ~[spigot-api-1.20.4-R0.1-SNAPSHOT.jar:?]
        ... 21 more