Some progress : I have detected that all the section repositary doesn't exist in my production section but exist in a fresh install of Moodle 3.1 for rights for authenticated users
Administration>Site administration>Users>Permissions>Define Roles edit the authenticated user role and set the capabilities 'moodle/user:manageownfiles' and 'repository/user:view' to prohibit.
That is this link help me to detect this problem : https://docs.moodle.org/39/en/Private_files .
So maybe it is an explanation of the problem ... How can I make it available in my Admin interface to check it is enable ?
Many thanks for your help
SOLVED : Finally the problem is solved with a new install of 3.9.1 version like a new upgrade . The previous upgrade was done with Softaculous and it seems that it was not a perfect install. Deleting all the moodle directory EXCEPT the config.php and copying all the file from a new fresh Softaculous installation EXCEPT config.php solve the problem ... I had to reinstall some plugins but it seems to go well & smooth now .
Maybe this info would help some one else