WordPress’s automatic ‘Settings saved.’ text fails to display after tapping on the ‘Save Changes’ button on my custom settings page

WordPress’s automatic ‘Settings saved.’ text fails to display after tapping on the ‘Save Changes’ button on my custom settings page

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