Fatal error: Uncaught Error: Class 'AMP_Base_Sanitizer' not found in /home/m5dergi/public_html/wp-content/plugins/amp/includes/sanitizers/class-amp-nav-menu-dropdown-sanitizer.php:18 Stack trace: #0 {main} thrown in /home/m5dergi/public_html/wp-content/plugins/amp/includes/sanitizers/class-amp-nav-menu-dropdown-sanitizer.php on line 18