Reproduction Steps
If someone from Roblox has access to my list of places, click Edit on a place that has been deleted.
For example, place name: rogeriodec_games’s Place Number: 3
If you read the statement, you will see that the places are still on the website and when they are clicked, they generate an error when opening Studio, which is the reason for opening this bug report.
Unfortunately places can not be deleted. Places are allowed to be “detached” from a universe, and attempting to edit them while in this state will result in an error.
Think of it as, the place is in “limbo”. It can be transferred from one universe to another, but can not be deleted or removed from your list of “places”.
Roblox may make this UX better with the new creator dashboard ( create.roblox.com )