Why it matters
The H1 states what the page is about. Zero leaves the topic unstated; several compete with each other and make the page read as a list of unrelated sections.
How to fix it
Keep one H1 for the page subject and demote the rest to H2.
Page has exactly one H1
High impact · weight 8 · worth up to 2.6 points of the total score
Check a page for this, and the other 41 checks at once
More SEO checks
Page declares a canonical URL
Without a canonical, every URL variant that reaches this page (tracking parameters, trailing slash, uppercase path) can be indexed as a separate page, splitting the ranking signal between duplicates.
Images have alt text
Alt text is how a screen reader describes an image and how a search engine understands it. Missing alt attributes are an accessibility defect and lost image-search traffic at the same time.
Title length is in range
Below about 30 characters the strongest on-page signal is left half unused; past about 60 Google truncates the title in the results page and the tail is wasted.
Canonical points at this page
A canonical aimed somewhere else tells Google to index that other URL instead of this one. Done by accident, usually by copying a template, it removes the page from search while everything still looks fine on screen.