Render looks bad? Wierd lines?

I am starting out with nomad sculpt since couple weeks, and I am really enjoying the software. But now I am stuck, I have tried everything, I think, and I cant understand why my renders get this lines?
Its comes forth the second I use Post process, max sample, full resulotion. See photo. Please help?
Big thanks

Maybe change the light and shadow settings …

@bluesculpt Try to change Curvature bias in AO settings