WordPress PHP error: HTTP raw post data missing — solutions and fixes

Solution:

Your PHP version no longer supports http_raw_post_data. To fix the issue, you have a few options:

1. Disable the plugin or theme that relies on http_raw_post_data.

2. Temporarily disable Debug Mode in wp-config.php by setting:

<?php
define('WP_DEBUG', false);
?>

Either approach should stop the warning from appearing.