Please, describe to us your problems in a bit more details. Attach some screenshots and provide us with a list of steps on how to reproduce it on your website.
The theme look like not compatible with the plugin cartflow,
On page backend option, we can custom it by turn off / on the headers or footers and have others otpions thanks woodmart, but it’s look like not having this option on the page of cartflow.
Our meta boxes are developed for WordPress default post types like pages and posts. They will not be displayed on any other custom post types added by third-party plugins.