Fixed

Author: RealMangorage

src/main/java/org/mangorage/mangobot/MangoBotPlugin.java

@@ -36,6 +36,7 @@
 import java.util.Scanner;
 import net.dv8tion.jda.api.entities.channel.ChannelType;
 import net.dv8tion.jda.api.events.message.MessageReceivedEvent;
+import net.dv8tion.jda.api.requests.RestConfig;
 import org.mangorage.basicutils.LogHelper;
 import org.mangorage.basicutils.config.Config;
 import org.mangorage.basicutils.config.ConfigSetting;

src/main/java/org/mangorage/mangobot/core/Util.java

@@ -78,7 +78,7 @@ public static MessageType handleMessage(JDAPlugin plugin, MessageReceivedEvent e
         if (rawMessage.length() > 1 && rawMessage.startsWith(cmdPrefix)) {
             if (event.getAuthor().isBot()) return new MessageType(false, false);
             String[] command_pre = rawMessage.split(" ");
-            String command = command_pre[0].replaceFirst(cmdPrefix, "");
+            String command = command_pre[0].substring(cmdPrefix.length());
             Arguments arguments = Arguments.of(Arguments.of(command_pre).getFrom(1).split(" "));
 
             var commandEvent = new BasicCommandEvent(event.getMessage(), command, arguments);