Fatal error: Uncaught Symfony\Component\Debug\Exception\FatalThrowableError: Argument 1 passed to App\Twig\Extension\MarkdownToHtmlFilter::markdownToHtml() must be of the type string, null given, called in /var/www/html/var/cache/prod/twig/ee/ee65181547e34c598d65ea266c2d657d576986e951e955c04228c9a49454986b.php on line 73 in /var/www/html/src/Twig/Extension/MarkdownToHtmlFilter.php:30 Stack trace: #0 /var/www/html/var/cache/prod/twig/ee/ee65181547e34c598d65ea266c2d657d576986e951e955c04228c9a49454986b.php(73): App\Twig\Extension\MarkdownToHtmlFilter->markdownToHtml(NULL) #1 /var/www/html/vendor/twig/twig/src/Template.php(379): __TwigTemplate_fb904c521d2fb6744a843278670e57ebdb852ab7590fc816d1cd29d38e5ecd97->doDisplay(Array, Array) #2 /var/www/html/vendor/twig/twig/src/Template.php(356): Twig\Template->displayWithErrorHandling(Array, Array) #3 /var/www/html/vendor/twig/twig/src/Template.php(364): Twig\Template->display(Array) #4 /var/www/html/vendor/twig/twig/src/TemplateWrapper.php(45): Twig\Template->render(Array, Array) #5 in /var/www/html/src/Twig/Extension/MarkdownToHtmlFilter.php on line 30