SEO check says H1 of page is missing?

Hi there hope you doing well today,
I am just working on my SEO right now and I just checked my page with one of these free SEO-Tests in the Web https://www.livelifegreen.de . They are all saying that my h1 for the page is missing.
Isn’t für h1 the title of my page? Maybe you could help me with that because I don’t understand it.
All the best
Alex

Hello there,

I hope you are doing well today.

I am not sure how this test goes about the test but the them uses H1 tags for the titles and H2-H6 for the secondary title so it may be looking at those other H tags and using those in the tests.

Best Regards,
Support