Fatal error: Uncaught Error: Call to undefined function mysql_connect() in /volume1/web/isoft/wp-includes/wp-db.php:1562
Stack trace:
#0 /volume1/web/isoft/wp-includes/wp-db.php(592): wpdb->db_connect()
#1 /volume1/web/isoft/wp-includes/load.php(404): wpdb->__construct('wordpress', 'Isoft!@#5934', 'wordpressblog', 'localhost:/run/...')
#2 /volume1/web/isoft/wp-settings.php(106): require_wp_db()
#3 /volume1/web/isoft/wp-config.php(113): require_once('/volume1/web/is...')
#4 /volume1/web/isoft/wp-load.php(37): require_once('/volume1/web/is...')
#5 /volume1/web/isoft/wp-blog-header.php(13): require_once('/volume1/web/is...')
#6 /volume1/web/isoft/index.php(17): require('/volume1/web/is...')
#7 {main}
  thrown in /volume1/web/isoft/wp-includes/wp-db.php on line 1562