“There are no questions matching your query”

Hi,
In incognito mode, questions and answers are not visible and I got the following message “There are no questions matching your query or you do not have permission to read them.” : https://www.debrider-velo-electrique.com/questions/
This is wierd because my settings allow anybody to read questions and answers.
– The link to see my settings : https://tinyurl.com/29dunl33
– The link to see Q&A visible when logged in : https://tinyurl.com/2872g3hh
Thanks for your help !
Bertrand