Log when there are not predictions for a single metric

morphemic-forecasting-eshybrid/forecasting/eshybrid.py

@@ -146,10 +146,11 @@ class ESHybrid(morphemic.handler.ModelHandler,messaging.listener.MorphemicListen
                 m,
                 times
             )
-            logging.debug("Got metric[%s] predictions %s",(m,predictions))
             if predictions.empty:
+                logging.debug("No prediction available yet for  metric[%s]",m)
                 continue
 
+            logging.debug("Got metric[%s] predictions %s",(m,predictions))
             for index,row in predictions.iterrows():
                 t = row['ds']
                 payload = {