Each time I click on “Suggest for curation” button, I’ve got a pop up error "An unexpected error occurred. Please report this.”
This likely doesn’t work because image uploads are broken at the moment, see also Can't upload avatar.
@joost is working on it and we will hopefully have the site updated at the end of september.
Hi Jonathan. Actually, I’ve successfully uploaded an image avatar and an image for the set curation request (didn’t work at the beginning but worked yesterday) but the button still doesn’t work. But My understanding is that’s in progress so I’ll be a little more patient 
. Thanks to have take time for the reply.