<ul><li>controller/platform_services/PlatformServicesController.php: Fixed 16 include_once paths missing leading slash — DOCUMENT_ROOT has no trailing slash so paths were resolving to /var/www/.../youportalplatform/... (not found) causing ALL AJAX response views to return empty; fixed all 16 occurrences</li><li>classes/email/ticket_email.class.php:871: Fixed Deprecated optional params before required — added default empty string to $companyName parameter</li></ul>