JupyterLab doesn't work

After I have upgraded to JupyterLab 4.0.8, every time I launch jupyterLab it continues initializing and could not even open any files in my workspace directory.
I don’t even know what happened, but no files can ben open for every attempts.
When I tried to launch JupyterLab via Prompt window with ‘jupyter lab’, it then tell me that 404 GET /api/collaboration/room/JupyterLab:globalAwareness (a970a3b16bed490486994fec9345f1bb@::1) 0.00ms referer=None, I don’t know what to do to help. Could anyone help me? Many thanks.