Fatal error: Uncaught Error: Interface "League\CommonMark\Extension\Mention\Generator\MentionGeneratorInterface" not found in /srv/www/sites/public/starter-projects/vendor/league/commonmark/src/Extension/Mention/Generator/StringTemplateLinkGenerator.php:19 Stack trace: #0 {main} thrown in /srv/www/sites/public/starter-projects/vendor/league/commonmark/src/Extension/Mention/Generator/StringTemplateLinkGenerator.php on line 19