Fix zero broadcast messages

Signed-off-by: Lixfel <agga-games@gmx.de>

src/de/steamwar/bungeecore/Broadcaster.java

@@ -30,7 +30,7 @@ class Broadcaster {
 
     Broadcaster(){
         ProxyServer.getInstance().getScheduler().schedule(BungeeCore.get(), () -> {
-            if(!ProxyServer.getInstance().getPlayers().isEmpty())
+            if(!ProxyServer.getInstance().getPlayers().isEmpty() && broadCastMsgs.length > 0)
                 BungeeCore.broadcast(BungeeCore.CHAT_PREFIX + broadCastMsgs[lastBroadCast]);
             lastBroadCast++;
             if(lastBroadCast == broadCastMsgs.length){