Story SW-300: error in case of not 200 http request

LCU/Maintenance/MDB_tools/cli/probe_mdb.py

@@ -77,7 +77,10 @@ def query_api_for_stationtest_rtsm_results(query_string, address, next_url=None)
         else:
             return extracted_content
     else:
-        return []
+        logging.error('error querying %s: http response code %d - %s, %s',
+                      full_address, response.status_code,
+                      response.reason, response.content)
+        raise Exception('Error querying {}'.format(address))
 
 
 def get_url_string_to_select_timespan(from_date, to_date):