Hi Salvo,
I checked the default.php file in the last topic and it looks like you removed the intro text. You don't need to edit via code, just disable the option: Show Intro Text in Articles Options (or menu item settings if you set it via menu ) https://prnt.sc/qfh74t
JA Teline V retrieves the intro text of an article to show it in blockquote part, if you don't set intro text for an article, it will take full text of article and show there so you can simply disable above option and it will show fine.
Regards