Uncaught Error: Call to undefined function mysql_query() in /home/leifprod/staging.leifproducts.com/wp-content/plugins/wp-cerber/common.php on line 2023

• cerber_db_query()
  wp-content/plugins/wp-cerber/common.php:2131
• cerber_db_get_col()
  wp-content/plugins/wp-cerber/settings.php:2517
• crb_get_settings()
  wp-content/plugins/wp-cerber/cerber-ds.php:842
• require_once()
  wp-content/plugins/wp-cerber/cerber-load.php:88
• require_once()
  wp-content/plugins/wp-cerber/wp-cerber.php:189
• include_once()
  wp-settings.php:473
• require_once()
  wp-config.php:191
• require_once()
  wp-load.php:50
• require_once()
  wp-blog-header.php:13
• require()
  index.php:17