Fatal error: Uncaught Error: Interface "League\CommonMark\Extension\ConfigurableExtensionInterface" not found in /home/helpdatafirst/public_html/helpappold/vendor/league/commonmark/src/Extension/TableOfContents/TableOfContentsExtension.php:26 Stack trace: #0 {main} thrown in /home/helpdatafirst/public_html/helpappold/vendor/league/commonmark/src/Extension/TableOfContents/TableOfContentsExtension.php on line 26