Fatal error: Uncaught Error: Class "WP_Widget" not found in /home/nyesigiso/apps/dev/dev.nyesigiso.com/web/app/plugins/smart-slider-3/Nextend/SmartSlider3/Platform/WordPress/Widget/WidgetSmartSlider3.php:13 Stack trace: #0 {main} thrown in /home/nyesigiso/apps/dev/dev.nyesigiso.com/web/app/plugins/smart-slider-3/Nextend/SmartSlider3/Platform/WordPress/Widget/WidgetSmartSlider3.php on line 13