Fatal error: Uncaught Error: Class 'Magento\Theme\Model\ResourceModel\Theme\Collection\Proxy' not found in /var/www/mastro7.it/www/vendor/magento/framework/ObjectManager/Factory/AbstractFactory.php:121 Stack trace: #0 /var/www/mastro7.it/www/vendor/magento/framework/ObjectManager/Factory/Compiled.php(108): Magento\Framework\ObjectManager\Factory\AbstractFactory->createObject('Magento\\Theme\\M...', Array) #1 /var/www/mastro7.it/www/vendor/magento/framework/ObjectManager/Factory/Compiled.php(150): Magento\Framework\ObjectManager\Factory\Compiled->create('Magento\\Theme\\M...') #2 /var/www/mastro7.it/www/vendor/magento/framework/ObjectManager/Factory/Compiled.php(79): Magento\Framework\ObjectManager\Factory\Compiled->get('Magento\\Theme\\M...') #3 /var/www/mastro7.it/www/vendor/magento/framework/ObjectManager/ObjectManager.php(70): Magento\Framework\ObjectManager\Factory\Compiled->create('Magento\\Theme\\M...') #4 /var/www/mastro7.it/www/generated/code/Magento/Theme/Model/Config/Processor/DesignTheme/Proxy.php(84): Magento\ in /var/www/mastro7.it/www/vendor/magento/framework/ObjectManager/Factory/AbstractFactory.php on line 121