Fatal error: Uncaught Magento\Framework\Exception\FileSystemException: Directory "/var/www/html/var/cache/" cannot be created Warning!mkdir(): Permission denied in /var/www/html/vendor/magento/framework/Filesystem/Driver/File.php:270 Stack trace: #0 /var/www/html/vendor/magento/framework/Filesystem/Driver/File.php(241): Magento\Framework\Filesystem\Driver\File->mkdirRecursive() #1 /var/www/html/vendor/magento/framework/Filesystem/Directory/Write.php(99): Magento\Framework\Filesystem\Driver\File->createDirectory() #2 /var/www/html/vendor/magento/framework/App/Cache/Frontend/Factory.php(313): Magento\Framework\Filesystem\Directory\Write->create() #3 /var/www/html/vendor/magento/framework/App/Cache/Frontend/Factory.php(148): Magento\Framework\App\Cache\Frontend\Factory->_getBackendOptions() #4 /var/www/html/vendor/magento/framework/App/Cache/Frontend/Pool.php(69): Magento\Framework\App\Cache\Frontend\Factory->create() #5 /var/www/html/vendor/magento/framework/App/Cache/Frontend/Pool.php(151): Magento\Framework\App\Cache\Fron in /var/www/html/vendor/magento/framework/Filesystem/Driver/File.php on line 270