Fatal error: Uncaught Error: Interface "League\CommonMark\Extension\TableOfContents\Normalizer\NormalizerStrategyInterface" not found in /home/helpdatafirst/public_html/helpapp/vendor/league/commonmark/src/Extension/TableOfContents/Normalizer/RelativeNormalizerStrategy.php:20 Stack trace: #0 {main} thrown in /home/helpdatafirst/public_html/helpapp/vendor/league/commonmark/src/Extension/TableOfContents/Normalizer/RelativeNormalizerStrategy.php on line 20