For a few last days I have crashes (game freezes at random moment and after a few seconds the process pnzcl.exe(?) is aborted, happens once-twice a few hours of play), does anyone experience something like this?

Also sometimes, rarely, servers seem to be lagging - people in chat say it's server issue (like not only I experience the lags at some particular while).

It could 'start' a bit earler than a few days ago but idk as i had some break from playing.
Any info about it?