Fatal error: Uncaught Error: Class 'Elementor\Widget_Base' not found in C:\xampp\htdocs\wp-content\plugins\timeline-widget-addon-for-elementor\widgets\twae-widget.php:13 Stack trace: #0 {main} thrown in C:\xampp\htdocs\wp-content\plugins\timeline-widget-addon-for-elementor\widgets\twae-widget.php on line 13