Fatal Error upon Restore

Hi,

Before I go post a negative review, I thought I’d take one last shot at getting it to work.

Here is the error message I receive:
Fatal error: Uncaught Error: Call to undefined function mysql_connect() in /public_html/wp-content/plugins/wp-database-backup/includes/admin/class-wpdb-admin.php:240 Stack trace: #0 /public_html/wp-includes/class-wp-hook.php(286): WPDB_Admin->wp_db_backup_admin_init(”) #1 /public_html/wp-includes/class-wp-hook.php(310): WP_Hook->apply_filters(NULL, Array) #2 /public_html/wp-includes/plugin.php(453): WP_Hook->do_action(Array) #3 public_html/wp-admin/admin.php(156): do_action(‘admin_init’) #4 public_html/wp-admin/tools.php(10): require_once(‘/p…’) #5 {main} thrown in /public_html/wp-content/plugins/wp-database-backup/includes/admin/class-wpdb-admin.php on line 240

Is this a problem with the plugin or do I need to update some setting somewhere?

Thanks!