Fatal error: Uncaught Error: Interface "League\CommonMark\Reference\ReferenceMapInterface" not found in C:\www\Apache24\htdocs\agenda-dif\vendor\league\commonmark\src\Reference\ReferenceMap.php:24 Stack trace: #0 {main} thrown in C:\www\Apache24\htdocs\agenda-dif\vendor\league\commonmark\src\Reference\ReferenceMap.php on line 24