catch conencter error on request

jarvis/utils/server_utils.py

@@ -35,11 +35,14 @@ def send_sentence_to_server(sentence):
     headers['Client-Port'] = str(config_utils.get_in_config('PORT'))
     # headers["Authorization"] = config_utils.get_in_config("API_KEY")
 
+    try:
         response = requests.post(url_service,
                                  headers=headers,
                                  json={'sentence': sentence})
 
         print(bytes.decode(response.content))
+    except ConnectionError:
+        print("Error connecting to the server (server was probably shutdown during request)...")
 
 
 def get_server_port():