ads not showing on page

Hi,

My ads are working on posts, but for some reason, they just will not show up at the bottom of a page. I have 2 blocks, one for posts, one for pages…and I’ve got to it set to insert at the bottom of the page, but nothing shows up. Any idea what could be causing this?
Thanks,
Aisha

https://wordpress.org/plugins/ad-inserter/