Fatal error: Uncaught Error: Interface "Onoi\CallbackContainer\CallbackContainer" not found in /var/www/html/w/vendor/onoi/callback-container/tests/phpunit/Fixtures/FakeCallbackContainer.php:14 Stack trace: #0 {main} thrown in /var/www/html/w/vendor/onoi/callback-container/tests/phpunit/Fixtures/FakeCallbackContainer.php on line 14