Fatal error: Uncaught Error: Interface "League\CommonMark\Environment\EnvironmentAwareInterface" not found in D:\Application\www\CPDB\vendor\league\commonmark\src\Extension\HeadingPermalink\HeadingPermalinkProcessor.php:29 Stack trace: #0 {main} thrown in D:\Application\www\CPDB\vendor\league\commonmark\src\Extension\HeadingPermalink\HeadingPermalinkProcessor.php on line 29