It is possible to start a gradient notebook. After it has started, the "Open" Button appears (and for the first time also a "copy notebook tocken" button, but clicking on the Open button, has no effect. and Clicking on the "copy token" button, just copies the token.

How can I open my notebook. Until now it was always working. And according to https://support.paperspace.com/hc/en-us/articles/115004535973-Getting-Started-with-Notebooks#%E2%80%9Crun_notebook%E2%80%9D --> 2. the open button is the way to go.

Thanks and Regards