Fatal error: Uncaught Error: Call to undefined function StringLocator\Extension\SQL\add_filter() in /home/refref/public_html/string-locator-20250409154331/includes/Extension/SQL/class-save.php:16 Stack trace: #0 /home/refref/public_html/string-locator-20250409154331/includes/Extension/SQL/class-save.php(145): StringLocator\Extension\SQL\Save->__construct() #1 {main} thrown in /home/refref/public_html/string-locator-20250409154331/includes/Extension/SQL/class-save.php on line 16