Is 'Sunshine Moonlight Error 2' a bannable offense, and what precautions should I take?

The error itself is *not* a bannable offense. However, the error is often triggered by software that *is* prohibited by Genshin Impact's terms of service (like cheating tools). Ensure you are not using any unauthorized programs. If you're unsure, it's best to err on the side of caution and disable it.