Fatal error: Uncaught Magento\Framework\Exception\FileSystemException: Directory "/home/testing/promotoner/var/cache/" cannot be created Warning!mkdir(): Permission denied in /home/testing/promotoner/vendor/magento/framework/Filesystem/Driver/File.php:270
Stack trace:
#0 /home/testing/promotoner/vendor/magento/framework/Filesystem/Driver/File.php(241): Magento\Framework\Filesystem\Driver\File->mkdirRecursive()
#1 /home/testing/promotoner/vendor/magento/framework/Filesystem/Directory/Write.php(96): Magento\Framework\Filesystem\Driver\File->createDirectory()
#2 /home/testing/promotoner/vendor/magento/framework/App/Cache/Frontend/Factory.php(294): Magento\Framework\Filesystem\Directory\Write->create()
#3 /home/testing/promotoner/vendor/magento/framework/App/Cache/Frontend/Factory.php(132): Magento\Framework\App\Cache\Frontend\Factory->_getBackendOptions()
#4 /home/testing/promotoner/vendor/magento/framework/App/Cache/Frontend/Pool.php(69): Magento\Framework\App\Cache\Frontend\Factory->create()
#5 /home/testing/promotoner/ven in /home/testing/promotoner/vendor/magento/framework/Filesystem/Driver/File.php on line 270