Fatal error: Uncaught Error: Interface "League\CommonMark\Block\Renderer\BlockRendererInterface" not found in C:\Apache24_x64\htdocs\ex-vak-new\vendor\league\commonmark\src\Block\Renderer\HeadingRenderer.php:22 Stack trace: #0 {main} thrown in C:\Apache24_x64\htdocs\ex-vak-new\vendor\league\commonmark\src\Block\Renderer\HeadingRenderer.php on line 22