WordPress error mysql

My website use the latest wordpress version, all of a sudden i start getting this error. I try disable all the plugin via database but same error. Any help

Deprecated: mysql_connect(): The mysql extension is deprecated and will be removed in the future: use mysqli or PDO instead in /home/website/public_html/wp-includes/wp-db.php on line 1568

Warning: Cannot modify header information – headers already sent by (output started at /home/website/public_html/wp-includes/wp-db.php:1568) in /home/website/public_html/wp-includes/pluggable.php on line 1195

• This topic was modified 8 years, 10 months ago by N-Ramdharry.