Fatal error: Uncaught Error: Interface "League\CommonMark\Block\Parser\BlockParserInterface" not found in C:\Apache24_x64\htdocs\ex-vak\vendor\league\commonmark\src\Extension\TableOfContents\TableOfContentsPlaceholderParser.php:21 Stack trace: #0 {main} thrown in C:\Apache24_x64\htdocs\ex-vak\vendor\league\commonmark\src\Extension\TableOfContents\TableOfContentsPlaceholderParser.php on line 21