DISALLOW_FILE_EDIT is false but I still am not able to edit files from the admin interface and the menus do not show up

DISALLOW_FILE_EDIT is false but I still am not able to edit files from the admin interface and the menus do not show up

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