An unstable overclock can cause shader compilation to throw generic error #1.

The most common culprit is the graphics driver (NVIDIA, AMD, or Intel). Drivers act as the translator between the game (which speaks DirectX) and the graphics card (which speaks hardware code). If a driver is outdated or has become corrupted, it may misinterpret a shader instruction, causing the application to crash.

The game may be trying to use DirectX 12 features on a system only supporting DirectX 11.

Conclusion