The item with id 'root' is not a workflow group

Hi, I’m trying to save my workflow to my downloads folder, but KNIME does not let me do so by not letting me click the ‘finish button’

I thought it had something to do with my Local Space, so I tried to click create folder, but got this instead:

The item with id ‘root’ is not a workflow group

Please give me a way to download my workflow as a .knar file.