Fatal error: Uncaught Error: Class 'Magento\Framework\Data\Wysiwyg\Normalizer' not found in /var/www/lib/internal/Magento/Framework/ObjectManager/Factory/Compiled.php:60 Stack trace: #0 /var/www/lib/internal/Magento/Framework/ObjectManager/ObjectManager.php(70): Magento\Framework\ObjectManager\Factory\Compiled->create('Magento\\Framewo...') #1 /var/www/app/code/Magento/Widget/Helper/Conditions.php(36): Magento\Framework\ObjectManager\ObjectManager->get('Magento\\Framewo...') #2 /var/www/lib/internal/Magento/Framework/ObjectManager/Factory/AbstractFactory.php(121): Magento\Widget\Helper\Conditions->__construct(NULL, NULL) #3 /var/www/lib/internal/Magento/Framework/ObjectManager/Factory/Compiled.php(108): Magento\Framework\ObjectManager\Factory\AbstractFactory->createObject('Magento\\Widget\\...', Array) #4 /var/www/lib/internal/Magento/Framework/ObjectManager/Factory/Compiled.php(150): Magento\Framework\ObjectManager\Factory\Compiled->create('Magento\\Widget\\...') #5 /var/www/lib/internal/Magento/Framework/ObjectManager/F in /var/www/lib/internal/Magento/Framework/ObjectManager/Factory/Compiled.php on line 60