Fatal error: Uncaught Error: Call to undefined function mysql_connect() in /home/zaniyars/public_html/wp-includes/class-wpdb.php:1810 Stack trace: #0 /home/zaniyars/public_html/wp-includes/class-wpdb.php(734): wpdb->db_connect() #1 /home/zaniyars/public_html/wp-content/plugins/query-monitor/wp-content/db.php(90): wpdb->__construct('zaniyars_amir', 'bahar@amir', 'zaniyars_amir', 'localhost') #2 /home/zaniyars/public_html/wp-includes/load.php(550): require_once('/home/zaniyars/...') #3 /home/zaniyars/public_html/wp-settings.php(124): require_wp_db() #4 /home/zaniyars/public_html/wp-config.php(175): require_once('/home/zaniyars/...') #5 /home/zaniyars/public_html/wp-load.php(50): require_once('/home/zaniyars/...') #6 /home/zaniyars/public_html/wp-blog-header.php(13): require_once('/home/zaniyars/...') #7 /home/zaniyars/public_html/index.php(17): require('/home/zaniyars/...') #8 {main} thrown in /home/zaniyars/public_html/wp-includes/class-wpdb.php on line 1810