SpigotCore_18/src/de/steamwar/core/CraftbukkitWrapper18.java

@@ -22,8 +22,8 @@ package de.steamwar.core;
 import net.minecraft.network.protocol.game.ClientboundLevelChunkWithLightPacket;
 import net.minecraft.server.MinecraftServer;
 import net.minecraft.world.level.chunk.Chunk;
-import org.bukkit.craftbukkit.v1_18_R1.CraftChunk;
-import org.bukkit.craftbukkit.v1_18_R1.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_18_R2.CraftChunk;
+import org.bukkit.craftbukkit.v1_18_R2.entity.CraftPlayer;
 import org.bukkit.entity.Player;
 
 public class CraftbukkitWrapper18 implements CraftbukkitWrapper.ICraftbukkitWrapper {

SpigotCore_Main/build.gradle

@@ -58,7 +58,7 @@ dependencies {
     compileOnly 'com.mojang:authlib:1.5.25'
     compileOnly 'mysql:mysql-connector-java:5.1.49'
     compileOnly files("${project.rootDir}/lib/WorldEdit-1.12.jar")
-    implementation 'net.wesjd:anvilgui:1.4.0-SNAPSHOT'
+    implementation 'net.wesjd:anvilgui:1.5.3-SNAPSHOT'
 
     compileOnly 'org.projectlombok:lombok:1.18.22'
     testCompileOnly 'org.projectlombok:lombok:1.18.22'

SpigotCore_Main/src/de/steamwar/core/ErrorHandler.java

@@ -142,6 +142,8 @@ public class ErrorHandler extends Handler {
         startsWith.add("Ignoring plugin channel");
         startsWith.add("Ignoring incoming plugin");
         startsWith.add("This version of Minecraft is extremely outdated");
+        startsWith.add("Custom worlds heights are NOT SUPPORTED for 1.16 players and older");
+        startsWith.add("You have min/max set to -64/384");
         ignoreStartsWith = Collections.unmodifiableList(startsWith);
 
         List<String> contains = new ArrayList<>();
@@ -149,6 +151,7 @@ public class ErrorHandler extends Handler {
         contains.add("moved wrongly!");
         contains.add("was kicked for floating too long!");
         contains.add("just tried to change non-editable sign");
+        contains.add("about their usage of System.out/err.print");
         ignoreContains = Collections.unmodifiableList(contains);
     }
 }