I can't start my Realm !!

Today at noon I was playing quietly and I got out of my Realm all of a sudden, but I wanted to go back in and he no longer let me (even my friends) I've been trying to get in for hours, but no matter how hard I do, it won't let me in and There are times when he lets me in but takes me out after 10 seconds, the same thing happens with my friends. When I remove myself and my friends, the message "Loss of connection" appears.