Fatal error: Uncaught Error: Interface 'Amp\CancellationToken' not found in /var/www/www-root/data/www/tg.bfdev.ru/vendor/amphp/amp/lib/NullCancellationToken.php:28 Stack trace: #0 {main} thrown in /var/www/www-root/data/www/tg.bfdev.ru/vendor/amphp/amp/lib/NullCancellationToken.php on line 28