The template is very nice, but unfortunately the system of nesting pages (like home page) involves a serious SEO problem, in fact the "PixCodes" plugin which manages the insertion of the titles and subtitles of the nested pages brings with it the titles h1 and h2 and there is no way to change the weight of the tags. The result will be a Home page or pages with too many h1 (in my case 4). The problem cannot be solved by overwriting the model or modifying the source code of the main model. But it is necessary that the authors intervene on the plugin itself. What a pity.
In the past, there was a problem if you have used multiple H1 tags on a page. And yes, it's recommended to have single H1 tag but multiple H1 don't hurt your ranking. Google algorithm are too smart these days so don't worry at all.
If there's something I can help you with, just let me know.