text: Title: [BUG] Interpret Data meet Oops!
  Body: **Describe the bug**
  I render a bar graph, when click 'Interpret Data' meet a Oops bug.
  
  **To Reproduce**
  Steps to reproduce the behavior:
  1. render a bar graph
  2. click 'Interpret Data' on a bar, There will be a Oops Error
  
  **Expected behavior**
  
  **Screenshots**
  ![image](https://github.com/Kanaries/pygwalker/assets/1471864/81f1fce1-5009-4dd4-a119-61f33f6b17c0)
  
  ![image](https://github.com/Kanaries/pygwalker/assets/1471864/788bfad9-f9d0-469a-a3cd-53d0fc4780d0)
  
  
  **Versions**
  - pygwalker version: 0.4.6
  - python version: 3.8
  - browser: chrome latest
  
  **Additional context**
  
  