What happens if by mistake I deleted the user profile from the website backend?

If you delete a user's profile from the website's backend, it will have several effects on the website. First, the user will no longer be able to access their account. Second, all of the user's data will be deleted, including any messages, posts, or comments they have made. Finally, the user's account will be removed from the website entirely. This can have a significant impact on the website, depending on how active the user was.