Fatal error: Uncaught Error: Interface "Psr\Http\Message\RequestInterface" not found in /var/www/rovfisk.se/inc/FirebaseCloudMessaging/psr/http-message/src/ServerRequestInterface.php:45 Stack trace: #0 {main} thrown in /var/www/rovfisk.se/inc/FirebaseCloudMessaging/psr/http-message/src/ServerRequestInterface.php on line 45