No authenticating errors

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

src/de/steamwar/bungeecore/ErrorLogger.java

@@ -91,6 +91,7 @@ public class ErrorLogger extends Handler {
         contains.add("DownstreamBridge");
         contains.add(" took ");
         contains.add("No client connected for pending server!");
+        contains.add("Error authenticating ");
         ignoreContains = Collections.unmodifiableList(contains);
     }
 }