Fatal error: Uncaught Error: Class 'Nextend\Framework\Request\Storage' not found in C:\xampp\htdocs\wp-content\plugins\smart-slider-3\Nextend\Framework\Request\Request.php:45 Stack trace: #0 C:\xampp\htdocs\wp-content\plugins\smart-slider-3\Nextend\Framework\Request\Request.php(67): Nextend\Framework\Request\Request->__construct() #1 {main} thrown in C:\xampp\htdocs\wp-content\plugins\smart-slider-3\Nextend\Framework\Request\Request.php on line 45