Why can’t I delete original user in multisite? Options for manual removal

Don’t delete the user, just change the email, username(optionally) and password in the users table. you can insert a MD5 string in the password field of the users table and WordPress will salt and hash it to a more secure format the first time you log in.

Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)