Cannot connect to servers after update

Ever since the update, when I try to connect to xmage.de or lukeskywalk, (or any server) I get an error message that stops me from connecting to the server.
High Quality Resources for Collectible Card Games
https://www.slightlymagic.net/forum/
https://www.slightlymagic.net/forum/viewtopic.php?f=70&t=20321