Failed to run the JupyterLab extension

Does anyone success to be enabled the JupyterLab extension?
When run the Pytorch or Tensorflow container and started the Jupyter Lab, the Extension function was shown the error as below.

Error communicating with server extension. Consult the documentation for how to ensure that it is enabled.
Reason given:
Error: 500 (Internal Server Error)

Do you have any solution to solve this issue?

Best regards.
Kaka

I found the workaround for this issue.

Thank you.

kaka