Update WordPress Site for Compatibility with PHP 8.2

I have a basic WordPress site that is running on PHP 5.6. I tried updating a few plugins and then wanted to update the site to PHP 8.2 (by switching the PHP version in DirectAdmin) and now I'm getting an HTTP Error 500 when trying to access the site. Looking for someone I can provide the DirectAdmin access to and who can bring the site back online and update it to PHP 8.2, and then ensure everything is compatible and working following the update (all pages load fine and look similar to how they did before). I'm ready to start right away and look forward to reading your application.