Stable diffusion sometimes generates images with weird lines

When I generate image with huggingface stable diffusion pipeline, it sometimes generate with weird green, yellow and red lines as shown in the picture(https://i.stack.imgur.com/L9RpJ.jpg).

Is anyone who knows the reason of this, and how I can remove this lines?

To reproduce :

model_id = "../stable-diffusion-2"   # I download stable-diffusion-2's weight and code
prompt = "best quality, extremely detailed"

scheduler = LMSDiscreteScheduler.from_pretrained(model_id, subfolder="scheduler")
pipe = StableDiffusionPipeline.from_pretrained(model_id, scheduler=scheduler, torch_dtype=torch.float16)
image = pipe(prompt).images[0]