Warning: A non-numeric value encountered in


I recently updated to PHP 7.4, and I keep getting the following error message for my Theme:

Warning: A non-numeric value encountered in /hermes/bosnacweb04/bosnacweb04ar/b610/myd.photogenica/public_html/photogenicaboothnyc/wp-content/themes/crowd/lib/php/main.php on line 999

The line referenced is:

    $submenu_nav_font_size = $navigation_font_size - 2;

Can anyone tell what the non-numeric value is and what the fix might be? I contacted the theme provider and they could not help. It is an outdated theme, but I’m hoping maybe there’s a fix.

The page I need help with: [log in to see the link]


This site will teach you how to build a WordPress website for beginners. We will cover everything from installing WordPress to adding pages, posts, and images to your site. You will learn how to customize your site with themes and plugins, as well as how to market your site online.

Buy WordPress Transfer