Permission to publish comments [solved]

Hello,

I don't know if this topic has been treated previously but i've got a problem to grant permission to a user (who is not administrator) to publish/unpublish comments in the BE.
I'm using Contao 2.11.5.

I've created a user, attached him to a user group which theorically should have the permission to modify the comments (all the checkboxes of the tl_comments table are checked) but this doesn't work.

Any idea on how to fix it ?

Thanks

edit :
This problem is solved : I omitted to check "Edit page" permission for user in the root page permission area.