Theme not working on mobile

None of the links in any page content are working (i.e. clickable) on mobile (footer, menu, and header work). We discovered this when embedding a Google form on our website, which no one on mobile devices could click on. After deactivating all plugins, the problem persisted, so I installed your theme on a brand-new WP site and observed the same behavior. Here is an example: https://dhcbarnard.org/catch-test/test-page/. It appears that links are clickable within posts, but I can't even click on a Post title on the Home page (the Posts page), so clearly something is going on with the content area of Pages. We are using WP version 5.6.