The page options in the Customizer has options for lets you hide or display page and blog titles. For more page options, please use the theme options panel at Ariyah > Page Options.
Page Titles
Display or hide titles on pages and blog posts. This lets you have options for either using the hero featured text box to display titles or to display them on the page or post area. You can also choose to display titles in both the hero and in pages and posts.