If you are getting any error messages when editing an Address there are certain steps you can take to resolve this issue.
You can try the following:
Try clearing your cache clearing browser cache
Try again from a different browser and an incognito tab.
Reinstall your browser and ensure to use the most up-to-date version.
Ask another admin user to try from their account.
Alternatively, you can log on to the mobile app and try to edit/remove the address from there.
📌Note: If all of the above fails you will need to raise a case.