Make sure you have the latest drivers installed for your graphics card.
Lowering graphics settings can help ensure stability.
You can try reinstalling the game.
Here are some additional resources that might be helpful:
- Official Ark forums: https://survivetheark.com/index.php?/forums/
- Steam Community discussions: https://steamcommunity.com/app/2399830/discussions/
- Ark Crash Fixes guide: https://appuals.com/fix-ark-keeps-crashing-pc/