Footer only showing on homepage

HI people, not sure if this is the correct place to post this but my footer is only showing on the homepage and I am having some problems changing it so it will display across the whole website.

I have tried changing

<?php if ( is_front_page()){ ?>

with is_singular and that works for posts and pages but obviously not category pages, when I try having multiple cases so is_singular() || is_front_page() then breaks the footer altogether.

Sorry if this is unclear, but thanks for your help in advance.