Why my form is not sending POST data?

my post thank you page at

https://www.foodfunshop.com/jotforms/index.php?submit=1

is not receiving any data from my form at

https://form.jotform.me/70671438090456

I have cloned your form and used https://www.jotform.com/show-post-data/ to capture the post data, I can see it works on my end: 

I can see on your custom thank you page it only shows the array without any data, what I woud suggest you is to check your code, to get all the fields you could use this code to just print the POST data:

<?php

print_r($_POST);

?>

I have tested on my end and it works fine, you can check on my clone form of yours: https://form.jotformpro.com/70684979480978