No access to discussion after J2.5 > J3 migration

Hi,

We are currently migrating a website from J2.5 to J3.2. I've installed the latest Easy discuss version on both Joomla version and migrate the database.
But on my new website when I'm public user (not logged in) I don't have access to any conversation. I think it must be something with ACL but I think I've tried everything
When I'm logged in everything is OK.

Can you have a look?

Thanks.