Fatal error: Uncaught Error: Interface "Psr\Http\Message\MessageInterface" not found in /srv/www/sites/public/starter-projects/vendor/psr/http-message/src/ResponseInterface.php:20 Stack trace: #0 {main} thrown in /srv/www/sites/public/starter-projects/vendor/psr/http-message/src/ResponseInterface.php on line 20