Fatal error: Uncaught Error: Interface "Amp\CancellationToken" not found in /var/www/html/casavio-qa2.das24.it/httpdocs_old/laravel/vendor/amphp/amp/lib/CombinedCancellationToken.php:5 Stack trace: #0 {main} thrown in /var/www/html/casavio-qa2.das24.it/httpdocs_old/laravel/vendor/amphp/amp/lib/CombinedCancellationToken.php on line 5