Fatal error: Uncaught Error: Call to undefined function has_nav_menu() in /home/clmepl5/public_html/web/app/themes/twentytwentyone/template-parts/header/site-nav.php:12 Stack trace: #0 {main} thrown in /home/clmepl5/public_html/web/app/themes/twentytwentyone/template-parts/header/site-nav.php on line 12