Lc doens't recognise my membership

Yesterday I tried to instal Lr on my Mac (I usually use LrC) because I want to switch between my Ipad and Mac. But it kept saying my trial period was over and I need a membership. When I tried to buy a 'photography-membership' on Adobe.com a screen pop-up that I can't buy it, because I already have a Creative Cloud membership but Lr doesn't seem to acknowledge it. I've tried to sign out and in, deleted the app and reinstal it, restart my computer, Limited access repair tool, manualy reset the host file. But all of that didn't work.

After that I read that you can also edit photo's while switching between LrC and Lc when you sync them. But when I tried to open Lr on my Ipad again it kept preparing my membership (for hours now). So I signed out and in, restarted my Ipad and deleted Lr and reinstal it. But non of it works. All the other apps work fine. I really don't know what to do anymore.. Can anyone help me?