Missing file beakerx_display.js

I run the code below in jupyter notebook, it won't print output. Have runned 'pip install beakerx' 'beakerx install' successfully.
```
import pandas as pd
from beakerx import *
from beakerx.object import beakerx
beakerx_table = TableDisplay(pd.read_csv('Data/cc.csv', encoding='gbk'))
beakerx_table
```
Here is error info in consloe and i cannot find beakerx_tabledisplay.js in the pc. o(╥﹏╥)o
```
GET http://localhost:8888/static/beakerx_tabledisplay.js?v=20210908134722 net::ERR_ABORTED 404 (Not Found)
Could not instantiate widget
Error: Could not create a model.
Couldn't process kernel message Error: Script error for "beakerx_tabledisplay"
Uncaught (in promise) Error: Script error for "beakerx_tabledisplay"
Couldn't process kernel message Error: Script error for "beakerx_tabledisplay"
Uncaught (in promise) Error: Script error for "beakerx_tabledisplay"
```