Fatal error: Uncaught Error: Interface "League\CommonMark\Renderer\NodeRendererInterface" not found in /home/bimmertest/BookStack/vendor/league/commonmark/src/Extension/CommonMark/Renderer/Block/HeadingRenderer.php:26 Stack trace: #0 {main} thrown in /home/bimmertest/BookStack/vendor/league/commonmark/src/Extension/CommonMark/Renderer/Block/HeadingRenderer.php on line 26