Fatal error: Uncaught Error: Class "Elementor\Widget_Base" not found in C:\xampp\htdocs\wowch_co\wp-content\plugins\optinmonster\OMAPI\Elementor\Widget.php:20 Stack trace: #0 {main} thrown in C:\xampp\htdocs\wowch_co\wp-content\plugins\optinmonster\OMAPI\Elementor\Widget.php on line 20