Fatal error: Uncaught Error: Interface 'ApiPlatform\GraphQl\Subscription\SubscriptionIdentifierGeneratorInterface' not found in /var/www/legtux.org/users/weboconsulting/www/vendor/api-platform/core/src/GraphQl/Subscription/SubscriptionIdentifierGenerator.php:21 Stack trace: #0 {main} thrown in /var/www/legtux.org/users/weboconsulting/www/vendor/api-platform/core/src/GraphQl/Subscription/SubscriptionIdentifierGenerator.php on line 21