Reduce Error Message spam

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

src/de/steamwar/bungeecore/ErrorLogger.java

@@ -67,7 +67,12 @@ public class ErrorLogger extends Handler implements Filter {
         }
 
         String stacktraceString = stacktrace.toString();
-        SWException.log("Bungee", MessageFormat.format(record.getMessage(), record.getParameters()), stacktraceString);
+        String message = MessageFormat.format(record.getMessage(), record.getParameters());
+
+        if(message.contains("ServerConnector") || message.contains("InitialHandler") || message.contains("DownstreamBridge"))
+            return;
+
+        SWException.log("Bungee", message, stacktraceString);
     }
 
     @Override