Fatal error: Uncaught Symfony\Component\Filesystem\Exception\IOException: Cannot rename "/tmp/shop1.jsonGARzcz" to "/var/www/prestashop/config/themes/vitalpartsltd/shop1.json": rename(/tmp/shop1.jsonGARzcz,/var/www/prestashop/config/themes/vitalpartsltd/shop1.json): Permission denied in /var/www/prestashop/vendor/symfony/filesystem/Filesystem.php:320 Stack trace: #0 /var/www/prestashop/vendor/symfony/filesystem/Filesystem.php(699): Symfony\Component\Filesystem\Filesystem->rename() #1 /var/www/prestashop/src/Core/Addon/Theme/ThemeRepository.php(88): Symfony\Component\Filesystem\Filesystem->dumpFile() #2 /var/www/prestashop/classes/shop/Shop.php(515): PrestaShop\PrestaShop\Core\Addon\Theme\ThemeRepository->getInstanceByName() #3 /var/www/prestashop/classes/shop/Shop.php(154): ShopCore->setTheme() #4 /var/www/prestashop/classes/shop/Shop.php(435): ShopCore->__construct() #5 /var/www/prestashop/config/config.inc.php(123): ShopCore::initialize() #6 /var/www/prestashop/index.php(40): require_once('...') #7 {main} thrown in /var/www/prestashop/vendor/symfony/filesystem/Filesystem.php on line 320