eds.activemath.org

I have created a collection “Essai”, and I would like to create a book “discover” with items of this collection (theorems, examples, exercises…). However, it is not possible: the answer is always “no items available” “go to users data to change your profile” (or something like that). Something must missing in the oqmath/omdoc files, but I do not know what… Many thanks for an answer!