Fatal error: Uncaught TypeError: array_walk(): Argument #1 ($array) must be of type array, null given in /var/www/html/prestashop/config/bootstrap.php:88 Stack trace: #0 /var/www/html/prestashop/config/bootstrap.php(88): array_walk() #1 /var/www/html/prestashop/config/config.inc.php(57): require_once('...') #2 /var/www/html/prestashop/index.php(27): require('...') #3 {main} thrown in /var/www/html/prestashop/config/bootstrap.php on line 88