Fatal error: Uncaught Error: Interface "League\CommonMark\Environment\EnvironmentAwareInterface" not found in /Users/m4_production_1/Sites/ipt/iptkids/vendor/league/commonmark/src/Extension/HeadingPermalink/HeadingPermalinkProcessor.php:30 Stack trace: #0 {main} thrown in /Users/m4_production_1/Sites/ipt/iptkids/vendor/league/commonmark/src/Extension/HeadingPermalink/HeadingPermalinkProcessor.php on line 30