SEO Nightmare

My renewal has expired a few months back on the Catch Responsive Theme I bought with a revision level of 3.8.1 and I've been working like a dog in the recent months trying to get my website ranked on Google. I'm tweaking my site as much as I can to gain as much as I can in the rankings, but still see little results. After checking my websites structure on Screaming Frog last week I've learned that every H1 and H2 Header are duplicates of the websites "Site Title" and "Tagline". In my case, that's 47 H1 duplicate and 47 H2 duplicate. I'd enclose a screen dump showing this fact, but you don't allow one in this submission. After seeing all of these duplicates, I removed the text in both "Site Title" and "Tagline" in the Customize area, but this left all the H1 and H2 descriptions completely empty from my website! Even though every page and post I create has an H1 and H2 description at the TOP of every page and post. What's more, if I activate another theme into my website, I see all the correct H1 and H2 headings as written out in every page and post that I created when I evaluate the website with the changed theme on Screaming Frog. Knowing this fact now, and unaware that it existed within your theme until last week I'd like to know what fix can you offer so that my website isn't penalized by Google for having either the 47 duplicate issue or not having any H1 and H2 when I omit the "Site Title" and "Tagline"? In either case, it's a great big penalty with Google. This message was sent to Catch Themes Support a week ago with no reply! Thanks for your time.