I’ve fixed the theme to work under PHP 8.1.
The compatibility problem is the deprecation of the PHP 7.x create_function().
You have to replace create_function() with function():
Ie.
create_function( ‘$var’, “php code;” )
with
function($var) { php code; }
I’ve fixed it only on these files and it works again:
wp-content/themes/montezuma/includes/parse_php.php
wp-content/themes/montezuma/includes/menus.php
wp-content/themes/montezuma/functions.php
Hope this helps.
