Hello Mert,

would you be so kind and add the missing hcard entries in the single.php files in a future update so that Google SEO sees the required parameters.

It should be located in the themes files like:
<span class="author_name"><?php the_author(); ?></span><br>

and adding these classes:
<span class="vcard author author_name"><span class="fn"><?php the_author(); ?></span></span><br><br>

but I did not found any of the classes like "author_name" in any of the common php files.

Here is related article whats missing:
https://kb.yoast.com/kb/fixing-hcard-author-error/

Thanks alot!

Greets,
Patrick.