Fatal error: Uncaught Error: Class 'Nextend\Framework\Content\WordPress\WordPressContent' not found in C:\xampp\htdocs\wp-content\plugins\smart-slider-3\Nextend\Framework\Content\Content.php:16 Stack trace: #0 C:\xampp\htdocs\wp-content\plugins\smart-slider-3\Nextend\Framework\Content\Content.php(28): Nextend\Framework\Content\Content->__construct() #1 {main} thrown in C:\xampp\htdocs\wp-content\plugins\smart-slider-3\Nextend\Framework\Content\Content.php on line 16