Thanks for contacting us about our product!
About this issue. We’ll fix it in next version to make it better with SEO.
Current you can fix it by following steps:
Step 1: go to Admin Dashboard -> Plugins -> Editor then select Haru Circle Core on the right side.
Step 2: go to haru-circle-core/templates/banner then select banner style you are using now.
Step 3: change all h1 tag to h6 tag.
Hope this help you!