Gndx

Great!
Thank you, good one ??

This need to be changed in current active theme file.
Find it in /wp-content/themes/YOUR_ACTIVE_THEME_FOLDER/page.php

Open and find this:

<?php endwhile; .......

Add this code before:
<?php comments_template( '', true ); ?>

The final code should be:

<?php comments_template( '', true ); ?>
<?php endwhile; .......

Try to add
/%cacategory%/%postname%/
??
or
/%%cacategory%/%postname%/

Ok, I’m going to use BuddyPress.
But I doubt if this will change all avatars to new profile page. Anybody know about this?

I also use Yoast, you should go to Dashboard > SEO > General(tab) and check some checkboxes e.g.: Use meta keyword and save Changes. Also if you have any cache plugin you should clean all caches.