Once you fix the crash, maintain stability with these rules:
If you are experiencing the error while playing God of War God of War Ragnarök
Common culprits:
stands for Direct3D , the graphics API inside Microsoft’s DirectX. It is the language your GPU (Graphics Processing Unit) uses to talk to God of War .
The "D3D Device Crash" in God of War (and God of War Ragnarök ) is a common DirectX error that occurs when the game loses communication with your graphics card. This often manifests as a "DXGI_ERROR_DEVICE_HUNG" or "The graphics device crashed" message.
If your drivers are old, update them through the Nvidia App/GeForce Experience or AMD Software. Steam Community Fix for D3D Device Crash - God of War Ragnarök