Why game keeps kicking me out?

Whenever I try to start a match game just returns me to title screen, The problems began when the new expansion got released. it doesn't matter whether it's an online match or practice. Also it sometimes happen during pack openings. I live in Kazakhstan but i never had problems with this at the start of the launch, i heard that Russians struggled with this though. What can i do? Whenever i try to log in with vpn it just shows me error code 2