hugo SEO optimization

When submitting a page index to bing today, it gave some optimization advice:: More than one h1 tag More than one h1 tag - 4 instances found How to fix? What is the issue about?These pages have more than one <h1> tag. Multiple <h1> header tags might confuse search engine bots and website's users. It is recommended to use only one <h1> tag per page. How to fix? Remove redundant <h1> tags from the page source, so that only one <h1> tag exists.