text: Title: Error loading layout
  Body: When i run this code
  ```
  explainer = ClassifierExplainer(model_lightgbm, x_test, y_test)
  ExplainerDashboard(explainer).run(mode='external')
  ```
  I am getting error like => **Error loading layout**
  ![image](https://user-images.githubusercontent.com/66181520/163362095-57df200b-01ae-4fcf-a8f6-0162f95038d3.png)
  
  
  **How can i fix it ?**
  
  **BTW my database is large, containing 7 columns and approximately 14000 row. Could this info be the reason of not opening ?**
  