A user is assigned one or more space sets; information about these is stored in the user account settings. To view spaces in a space set, hover over the space set in the user profile. If necessary, you can add or remove spaces from the space set in the Settings → Spaces permissions section.
If a space is deleted from the storage, the space is still displayed as part of the space set with the deleted+UUID designation. In this case, only the first 8 characters of the space's universal unique ID (UUID) are displayed. A deleted space is longer displayed as part of the space set after you save changes to that space set.
A space is completely deleted from the space set if that space has no events. If there are some events in the space being deleted, KUMA displays the space as deleted+UUID even after saving changes to the space set.