Fatal error: Uncaught LogicException: Extension DOM is required. in /home/hima3421/prestashop/www/vendor/symfony/symfony/src/Symfony/Component/Config/Util/XmlUtils.php:50 Stack trace: #0 /home/hima3421/prestashop/www/vendor/symfony/symfony/src/Symfony/Component/Config/Util/XmlUtils.php(146): Symfony\Component\Config\Util\XmlUtils::parse('<?xml version="...', Array) #1 /home/hima3421/prestashop/www/vendor/symfony/symfony/src/Symfony/Component/DependencyInjection/Loader/XmlFileLoader.php(397): Symfony\Component\Config\Util\XmlUtils::loadFile('/home/hima3421/...', Array) #2 /home/hima3421/prestashop/www/vendor/symfony/symfony/src/Symfony/Component/DependencyInjection/Loader/XmlFileLoader.php(49): Symfony\Component\DependencyInjection\Loader\XmlFileLoader->parseFileToDOM('/home/hima3421/...') #3 /home/hima3421/prestashop/www/vendor/doctrine/doctrine-bundle/DependencyInjection/DoctrineExtension.php(117): Symfony\Component\DependencyInjection\Loader\XmlFileLoader->load('dbal.xml') #4 /home/hima3421/prestashop/www/vendor/doctrine/doctrine-bundle/DependencyInjection/DoctrineExtension.php(88): Doctrine\Bundle\DoctrineBundle\DependencyInjection\DoctrineExtension->dbalLoad(Array, Object(Symfony\Component\DependencyInjection\Compiler\MergeExtensionConfigurationContainerBuilder)) #5 /home/hima3421/prestashop/www/vendor/symfony/symfony/src/Symfony/Component/DependencyInjection/Compiler/MergeExtensionConfigurationPass.php(76): Doctrine\Bundle\DoctrineBundle\DependencyInjection\DoctrineExtension->load(Array, Object(Symfony\Component\DependencyInjection\Compiler\MergeExtensionConfigurationContainerBuilder)) #6 /home/hima3421/prestashop/www/vendor/symfony/symfony/src/Symfony/Component/DependencyInjection/Compiler/Compiler.php(94): Symfony\Component\DependencyInjection\Compiler\MergeExtensionConfigurationPass->process(Object(PrestaShop\PrestaShop\Adapter\Container\LegacyContainerBuilder)) #7 /home/hima3421/prestashop/www/vendor/symfony/symfony/src/Symfony/Component/DependencyInjection/ContainerBuilder.php(762): Symfony\Component\DependencyInjection\Compiler\Compiler->compile(Object(PrestaShop\PrestaShop\Adapter\Container\LegacyContainerBuilder)) #8 /home/hima3421/prestashop/www/src/Adapter/ContainerBuilder.php(189): Symfony\Component\DependencyInjection\ContainerBuilder->compile() #9 /home/hima3421/prestashop/www/src/Adapter/ContainerBuilder.php(137): PrestaShop\PrestaShop\Adapter\ContainerBuilder->compileContainer() #10 /home/hima3421/prestashop/www/src/Adapter/ContainerBuilder.php(103): PrestaShop\PrestaShop\Adapter\ContainerBuilder->buildContainer('front') #11 /home/hima3421/prestashop/www/classes/Hook.php(1128): PrestaShop\PrestaShop\Adapter\ContainerBuilder::getContainer('front', true) #12 /home/hima3421/prestashop/www/classes/Hook.php(767): HookCore::getHookModuleFilter() #13 /home/hima3421/prestashop/www/classes/Hook.php(848): HookCore::getHookModuleExecList('moduleRoutes') #14 /home/hima3421/prestashop/www/classes/Dispatcher.php(606): HookCore::exec('moduleRoutes', Array, NULL, true, false) #15 /home/hima3421/prestashop/www/classes/Dispatcher.php(243): DispatcherCore->loadRoutes() #16 /home/hima3421/prestashop/www/classes/Dispatcher.php(201): DispatcherCore->__construct(Object(Symfony\Component\HttpFoundation\Request)) #17 /home/hima3421/prestashop/www/index.php(28): DispatcherCore::getInstance() #18 {main} thrown in /home/hima3421/prestashop/www/vendor/symfony/symfony/src/Symfony/Component/Config/Util/XmlUtils.php on line 50