Hello
On the blog’s archive page, the Read more button directs you to a post with an unexpected parameter, for example:
https://salezjanie.ayz.pl/biblioteka-szkolna-oglasza-konkurs-plastyczny/#more-3313
The featured image directs you to the post without this parameter.
https://salezjanie.ayz.pl/biblioteka-szkolna-oglasza-konkurs-plastyczny/
How to remove it:
#more-3313
I know it’s a post ID, but not needed here.
The page is being prepared, temporary domain.
Regards