Fixed bug at logger for DCA service

dca-carouge-fountain/app.py

@@ -182,7 +182,7 @@ def post_dca_carouge_fountain_sensed_data_payload():
         app.logger.error('Message with empty <data frame> field from sensor {}'.format(request.json['deveui'] ))
         raise InvalidUsage(message='Empty data frame field received', payload=request.json)
 
-    app.logger("Got message from FOUNTAIN devices: {}".format(request.json))
+    app.logger.info("Got message from FOUNTAIN devices: {}".format(request.json))
 
     # push data to context broker
     resp = {}