Cannot log into my friends realm

Hello, i was excited to start killing pillagers but i can't sign into my friends realm!  If i try it shows a popup to get a trial of a realm (mine is greyed out) or to buy a realm.  If i try to LEAVE the realm, clicking the giant X gives the same popup to do a trial or buy a realm.  i just wanna meet new villagers   thanks for a great game, i am about 10 years too late on it but glad to see you are still alive and updating! 

 

thanks guys, have a good one,

           Heytheresakitty