No H1 tag was found. For the best SEO results there should be exactly one H1 tag

Hello,

Thanks for contacting us, and sorry for any inconvenience that might have been caused due to that.

It seems that you’re currently using the Rank Math PRO plugin, but the account you have used to open this ticket is the Rank Math free version.

Can you please search and forward a receipt from FastSpring.com so we can locate your account and verify it?

Back to your issue,

#1 ~ No H1 tag was found
I’ve checked your site and found no H1 tag there. In order to fix this error, please try adding at least one H1 tag on each page of your site. You may also get in touch with your theme provider to see if they can resolve the issue for you.

#2 ~ Some Opengraph meta tags are missing
I’ve logged into your site and while looking into the settings, I found the image set for the default OpenGraph image has too low dimensions. Updating the image with the correct image dimensions shows og:image property on your site.

In order to fix this issue, please try updating the default OpenGraph with a recommended image size as close as 1200 x 630 pixels, and also please make sure that the image is with supported image format like JPEG, PNG, or GIF.

You may try checking the URL below to learn about OpenGraph guidelines by Facebook:
https://developers.facebook.com/docs/sharing/webmasters/images/

Once you’ve done fixing both issues on your site, please try clearing your site cache and run SEO analysis again.

I’ve attached a screenshot mentioning both my findings in the sensitive data section for your reference.

Let us know how it goes. Looking forward to helping you.

Thank you.