Yoast SEO Issues with Divi?

I seem to be having some issues getting my Yoast SEO score happy. I am using the latest version of WordPress, Divi, and the Yoast SEO plugin. I reached out to Yoast’s support via email yesterday morning but haven’t heard back so I’ll try this instead.

1) “Single title: H1s should only be used as your main title. Find all H1s in your text that aren’t your main title and change them to a lower heading level!”
— I only have 1 H1 tag on all of my pages, it’s the H1 text in the full-width headings. The rest of the headings are H2-H4, yet I still get this error. Any suggestions?

2) “Keyphrase in introduction: Your keyphrase or its synonyms do not appear in the first paragraph. Make sure the topic is clear immediately.”
— I literally have my keyphrase in the very first <p> paragraph on the page.

3) “Image alt attributes: Images on this page do not have alt attributes that reflect the topic of your text. Add your keyphrase or synonyms to the alt tags of relevant images!”
— The only image on this page is the background of the full-width header. Divi usually has an “attributes” option in their module settings under Advanced when it involves an image, but that’s not an option in the full-width header settings. I’ve tried putting the alt attributes in the media gallery but that doesn’t seem to help. Any suggestions there?

Any help or advice would be greatly appreciated!! Thank you!

The page I need help with: [log in to see the link]