Looks like your new site is now running PHP 7.4.27. Running check-fetch-times.php?show=versions shows the key scripts are up-to-date.
In top.php, you have <?php require('/home/redpis/public_html/zbblock/zbblock.php'); ?>
and that is likely failing due to the changed path to your document root of /home3/chattris/public_html . the failing require() causes a fatal error when the required file is not found.