You may have logged in with a wrong account. (The account used to write that comment has no access to Rebirth on Steam)

shared copy = game no steam ? because this what i have

You have a shared copy when someone owning rebirth gives you access to his steam libary using steam familiy sharing. You dont seem to have such version as rebirth would appear in your recently played history.
We dont grant full member accounts to persons not owning rebirth.

oh ok.....