Is the Facebook Account Achievement still avaliable or is already retired? im a little short of csc xD

definitely retired. It didn't work for a long time even before they retired it. Have you done quests for

ohh, thanks i didnt know, i just found out about the achievement in subetalodge and look for it but didnt find it ..

and yes i tried quest but no lucky with the morty cards. thanks for the help :)