Whaoo ...
I was using a SuperAdmin account with only SuperAdmin group access.
I did not know that it was necessary to grant the rights of the group in addition to super Administrator to access the submenus.
The submenus that I could access were all in public.
I created this account following your advice a few days ago and stopped access to Frontend for Super Admin. I did not make the connection quickly ...
The mystery is closed ... Sorry for lost your time .. Was for me ..
Have a nice day anyway and thank you for your support!
Ps : Thank you for your suggestion to connect to my site, it's really nice of you! Gratitude, I drop the bunch lol