Hi, I have installed Davinci 17.1, and i had no problems, until now. from today it started to crash at start up. i have uninstalled and installed it , but same result

i have replies mu network card, can it bug davinci 17.1?
i have instaled dzvinchi 16.8 and it worcs perfectli.
running on Threadripper 1920x, asus rogth zenit extreem x399, 16GB ram, Win Pro