Fatal error: Uncaught ReflectionException: Class "Magento\Checkout\Model\Session\Interceptor" does not exist in /var/www/vhosts/newsha.com/httpdocs/magento2/vendor/magento/framework/Code/Reader/ClassReader.php:34 Stack trace: #0 /var/www/vhosts/newsha.com/httpdocs/magento2/vendor/magento/framework/Code/Reader/ClassReader.php(34): ReflectionClass->__construct() #1 /var/www/vhosts/newsha.com/httpdocs/magento2/vendor/magento/framework/ObjectManager/Definition/Runtime.php(54): Magento\Framework\Code\Reader\ClassReader->getConstructor() #2 /var/www/vhosts/newsha.com/httpdocs/magento2/vendor/magento/framework/ObjectManager/Factory/Dynamic/Developer.php(48): Magento\Framework\ObjectManager\Definition\Runtime->getParameters() #3 /var/www/vhosts/newsha.com/httpdocs/magento2/vendor/magento/framework/ObjectManager/ObjectManager.php(56): Magento\Framework\ObjectManager\Factory\Dynamic\Developer->create() #4 /var/www/vhosts/newsha.com/httpdocs/magento2/pub/affiliate.php(70): Magento\Framework\ObjectManager\ObjectManager->create() #5 {main} thrown in /var/www/vhosts/newsha.com/httpdocs/magento2/vendor/magento/framework/Code/Reader/ClassReader.php on line 34