Winnus

I had a look into it a while ago but I do not understand tornado and therefore do not know whats causing the error.

Using a new installation of jupyterlab and jupyterlab-lsp the error can not be reproduced. Whatever have fixed it, it seems to be fixed as I tested it on different machines....

Do you need to use the `jupyter/minimal-notebook:python-3.9.13` ? For me it worked by using the standart ferdora image, then creating a virtual environment and within that install all jupyterlab and...