I have had people logging in my kin, yelling and complain that I kicked them out.
When I started this game after Moria came out, there has been a kinship bug. It looks like you are kinless.
Don’t freak out!
First off look in your alerts and see if you lost your kinship title.
If you did, that means you were kicked out.
If you have no alerts about titles, you’re still in the kin. Just log out and log back in again.