Fatal error: Uncaught Error: Interface "Symfony\Component\Notifier\Channel\ChannelPolicyInterface" not found in /home/astechc1/public_html/vendor/symfony/notifier/Channel/ChannelPolicy.php:19 Stack trace: #0 {main} thrown in /home/astechc1/public_html/vendor/symfony/notifier/Channel/ChannelPolicy.php on line 19