Thank you for the screenshot
1
Because the wrong method was used to remove that account your best option now will be to create a new local account and move your data from the old account to the new account.
2
Alternatively, n the left pane of the Registry Editor, select 'Computer' at the top.
Then choose Edit - Find and search for the Email address on that account you want to remove, to see if you can find it elsewhere in your registry and please provide a screenshot of what you find.