Update app.py

app.py

@@ -311,7 +311,7 @@ def chatbot(image, instruction, add_info, history, chat_log):
     chat_action = add_response("user", prompt_action, chat_action, [screenshot_som_file])
     output_action = inference_chat(chat_action, vl_model_version, API_url, token)
     output_for_save_this_step['action'] = output_action
-    action_json = output_action
+    action_json = json.loads(output_action.split("```json")[-1].split("```")[0])
     thought = action_json['Thought']
     summary = action_json['Summary']
     action = action_json['Action']