How to remove h1 from the all the pages except homepage

Hello folks,
So using this theme called “silvia” for my website. Every page of my website has this header which consists of nav bar and the title “The Dark Secrets”. The problem is the the title “The Dark Secrets” is being shoed in H1 of the page not just this the pages itself has a different h1 which is provided by Yoast SEO. This is creating multiple h1s on the page. So now if I want to remove the h1 which is given by the theme then how should I remove it. Also I don’t want to remove it from the homepage. I just want to remove from the rest pages.