src/de/steamwar/bungeecore/listeners/mods/Fabric.java

@@ -31,6 +31,7 @@ import net.md_5.bungee.api.connection.ProxiedPlayer;
 import net.md_5.bungee.api.event.PluginMessageEvent;
 import net.md_5.bungee.event.EventHandler;
 
+import java.nio.charset.StandardCharsets;
 import java.sql.Timestamp;
 import java.time.Instant;
 import java.util.*;
@@ -51,7 +52,7 @@ public class Fabric extends BasicListener {
 
         List<Mod> mods = new LinkedList<>();
 
-        String dataString = new String(e.getData()).substring(1);
+        String dataString = new String(e.getData(), StandardCharsets.UTF_8).substring(1);
 
         System.out.println(dataString);