Fatal error: Uncaught Error: Call to undefined function Symfony\Component\Mercure\trigger_deprecation() in /home/robertdr/concrete9.robertdrake.co.uk/updates/concrete-cms-9.4.1-remote-updater/concrete/vendor/symfony/mercure/src/PublisherInterface.php:16 Stack trace: #0 {main} thrown in /home/robertdr/concrete9.robertdrake.co.uk/updates/concrete-cms-9.4.1-remote-updater/concrete/vendor/symfony/mercure/src/PublisherInterface.php on line 16