MATLAB kernel could not communicate with MATLAB in JupyterLab through JupyterHub (with reverse proxy nginx)

[ytdHuang]

Hi, I'm using JupyterLab through JupyterHub (with reverse proxy nginx)

All the users can login to JupyterHub and do matlab calculations through terminal

> matlab
MATLAB is selecting SOFTWARE OPENGL rendering.

                                < M A T L A B (R) >
                      Copyright 1984-2021 The MathWorks, Inc.
                     R2021b (9.11.0.1769968) 64-bit (glnxa64)
                                September 17, 2021

 
To get started, type doc.
For product information, visit www.mathworks.com.
 
>> 1+1

ans =

     2

>> 

When I open matlab from the Launcher in JupyterLab (notebook or console), the status of the kernel will show Idle, but if I type 1+1, it pops out an error:

Error: MATLAB Kernel could not communicate with MATLAB.
Reason: Possibly due to invalid jupyter security tokens.

The version of matlab, python and related packages:

• matlab==R2021b
• Python==3.8.8
• JupyterHub==3.1.1
• JupyterLab==4.0.5
• jupyter-matlab-proxy==0.11.0

Does anyone know how to fix the invalid jupyter security tokens, or did I miss any settings ?