Fix channel not decrement

src/main/java/net/Broken/BotListener.java

@@ -156,6 +156,7 @@ public class BotListener extends ListenerAdapter {
         super.onGuildVoiceMove(event);
         AutoVoiceChannel autoVoiceChannel = AutoVoiceChannel.getInstance(event.getGuild());
         autoVoiceChannel.leave(event.getChannelLeft());
+        autoVoiceChannel.join(event.getChannelJoined());
     }
 
     @Override

src/main/java/net/Broken/Tools/AutoVoiceChannel.java

@@ -57,6 +57,7 @@ public class AutoVoiceChannel {
                 if (entry.getValue().equals(id)) {
                     logger.info("Auto created channel is empty, deleting it ...");
                     voiceChannel.delete().reason("Auto-remove empty voice channel").queue();
+                    createdChannels.remove(entry.getKey());
                 }
             }
         }