I am trying to self host a PHP script called sngine. (facebook clone)

When trying to install it I get an error:

config.php - Required includes folder to be writable for the installation

when I run ls -l I get this: drwxrwxrwx 5 mbeck mbeck 4096 Aug 25 23:00 includes

I don't know why it is saying that it's not writable.

The script is in var/www/{domain name}/ I am on Apache/2.4.41 (Ubuntu) and PHP version: 7.4.22

EDIT: I found someone saying to run chown www-data:www-data <directory> So I did, and permissions now return drwxrwxrwx 5 www-data www-data 4096 Aug 25 23:00 includes and the error is still there.