Thank you for reaching out.

Would you mind giving us a link to the page that Google Search Console give you an error about and the exact error it mentioned, so we can check?

Thanks.

Here a screenshot of Google with 1 page/link with the error

View post on imgur.com

Thank you for your reply. We checked the URL of your tag archive and see some weird structures. It does get null added as a Type, and that is indeed incorrect.

However, we saw that line 32 on the archive page has the following:
<link rel="alternate" type="application/rss+xml" title="MegaCams4 &raquo; Feed" href="https://megacams4.com/feed/" />

This links to the homepage and not the archive page. We believe this is caused by how your theme is working and how it works internally to build those pages. Can you check if you can see the ‘null’ part when you are switching to a default theme? You can do so with the Health Check plugin so other users and site visitors aren’t affected.