Freezing on mission exit or attempting login

Since yesterday, when I enter a mission or occasionally exit, the loading screen can freeze at approximately 5% progress. If I switch windows and switch back it displays a screen of the door and I can hear the ambient sound but there is no interface.

Closing the program I try to log in but I often get 'cannot connect to server' the first attempt and if I then log in again I get a freeze if I attempt to enter the same server and ultimately a 'DB error' booting me to the login again.

ANOTHER attempt then has a usual process until I attempt another mission and it starts again.

I attempted reinstall but no change, and I did not change much on the computer beyond installing beta a while ago.

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A game is not supposed to be some kind of... place where people enjoy themselves!