Hello.
My backup from one cloud that I tried to import to another cloud keeps failing with the error: A space with key SEW already exists.

Reading on other similar failures on this page. This is not working:

Trying to make a new Blank page with same Key:

I had no Spaces left, since I delete them, and also from trash. Set the ID to the page above - to SEW2. And this is the only one showing.

And under Archived and Trash - nothing.

How can I fix/delete this SEW-key.
Or can I change the SEW-key in the import-zip to something else?
Weird that I find this error in 6 year old posts.