Fatal error: Uncaught Error: Class "Laminas\Validator\Hostname" not found in /var/www/html/magento2/vendor/laminas/laminas-http/src/PhpEnvironment/Request.php:298 Stack trace: #0 /var/www/html/magento2/vendor/laminas/laminas-http/src/PhpEnvironment/Request.php(101): Laminas\Http\PhpEnvironment\Request->setServer() #1 /var/www/html/magento2/vendor/magento/framework/HTTP/PhpEnvironment/Request.php(135): Laminas\Http\PhpEnvironment\Request->__construct() #2 /var/www/html/magento2/vendor/magento/framework/App/Request/Http.php(124): Magento\Framework\HTTP\PhpEnvironment\Request->__construct() #3 /var/www/html/magento2/vendor/magento/framework/ObjectManager/Factory/AbstractFactory.php(121): Magento\Framework\App\Request\Http->__construct() #4 /var/www/html/magento2/vendor/magento/framework/ObjectManager/Factory/Compiled.php(108): Magento\Framework\ObjectManager\Factory\AbstractFactory->createObject() #5 /var/www/html/magento2/vendor/magento/framework/ObjectManager/Factory/Compiled.php(150): Magento\Framework\ObjectManager\Factory\Compiled->create() #6 /var/www/html/magento2/vendor/magento/framework/ObjectManager/Factory/Compiled.php(79): Magento\Framework\ObjectManager\Factory\Compiled->get() #7 /var/www/html/magento2/vendor/magento/framework/ObjectManager/Factory/Compiled.php(150): Magento\Framework\ObjectManager\Factory\Compiled->create() #8 /var/www/html/magento2/vendor/magento/framework/ObjectManager/Factory/Compiled.php(79): Magento\Framework\ObjectManager\Factory\Compiled->get() #9 /var/www/html/magento2/vendor/magento/framework/ObjectManager/ObjectManager.php(56): Magento\Framework\ObjectManager\Factory\Compiled->create() #10 /var/www/html/magento2/vendor/magento/framework/App/Cache/Frontend/Factory.php(216): Magento\Framework\ObjectManager\ObjectManager->create() #11 /var/www/html/magento2/vendor/magento/framework/App/Cache/Frontend/Factory.php(180): Magento\Framework\App\Cache\Frontend\Factory->_applyDecorators() #12 /var/www/html/magento2/vendor/magento/framework/App/Cache/Frontend/Pool.php(69): Magento\Framework\App\Cache\Frontend\Factory->create() #13 /var/www/html/magento2/vendor/magento/framework/App/Cache/Frontend/Pool.php(156): Magento\Framework\App\Cache\Frontend\Pool->_initialize() #14 /var/www/html/magento2/vendor/magento/framework/App/Cache/Type/FrontendPool.php(87): Magento\Framework\App\Cache\Frontend\Pool->get() #15 /var/www/html/magento2/vendor/magento/framework/App/Interception/Cache/CompiledConfig.php(29): Magento\Framework\App\Cache\Type\FrontendPool->get() #16 /var/www/html/magento2/vendor/magento/framework/ObjectManager/Factory/AbstractFactory.php(121): Magento\Framework\App\Interception\Cache\CompiledConfig->__construct() #17 /var/www/html/magento2/vendor/magento/framework/ObjectManager/Factory/Compiled.php(108): Magento\Framework\ObjectManager\Factory\AbstractFactory->createObject() #18 /var/www/html/magento2/vendor/magento/framework/ObjectManager/ObjectManager.php(70): Magento\Framework\ObjectManager\Factory\Compiled->create() #19 /var/www/html/magento2/vendor/magento/framework/App/ObjectManager/Environment/Compiled.php(117): Magento\Framework\ObjectManager\ObjectManager->get() #20 /var/www/html/magento2/vendor/magento/framework/App/ObjectManagerFactory.php(191): Magento\Framework\App\ObjectManager\Environment\Compiled->configureObjectManager() #21 /var/www/html/magento2/vendor/magento/framework/App/Bootstrap.php(212): Magento\Framework\App\ObjectManagerFactory->create() #22 /var/www/html/magento2/vendor/magento/framework/App/Bootstrap.php(127): Magento\Framework\App\Bootstrap->__construct() #23 /var/www/html/magento2/pub/index.php(31): Magento\Framework\App\Bootstrap::create() #24 {main} thrown in /var/www/html/magento2/vendor/laminas/laminas-http/src/PhpEnvironment/Request.php on line 298