Only works when “Personnaliser” is open

Hi,
I use your plugin on the first page of my site on custom posts (see “NOS MACHINES D’OCCASION” post part)
The plugin works but only when I am logged in and I have in public view “Personnaliser”> widget > the corresponding widget open.

When I exit “Personnaliser” the posts are no longer in the defined order.

If I am not logged in, the posts are not in the right order. Visitors to my website don’t have a login, so they never see the right order.

Can you tell me what I missed?
If you wish I can give you access to the WordPress administration.

Thank you for your help

The page I need help with: [log in to see the link]