Thank you all for your time.
I finally found out where the problem was.
I had this line in functions.php that was messing up:
add_filter(‘single_template’, ‘my_single_template’);
I commented it and now everything works fine !
Thanks for your time.
By searchning the rest of the day, i realized that the problem comes from my child theme.
When i use another theme or the Divi parent theme everything works fine.
I keep on searching this way today but if you have any idea…
Thanks and have nice day.
