Can't connect to server

[url=https://zupimages.net/viewer.php?id=22/06/d52e.png][/url]

Hi,
I’ve an issue right after entering the game, the popup below just show up and the game closes. Please tell me what I’m doing wrong

The first time I saw this error, was in the game, after that this error is up everytime I start the game

Thank you.