Update app_demo.py

app_demo.py

@@ -100,6 +100,9 @@ def generate(
         width=width,
         height=height,
         guidance_scale=guidance_scale,
+        negative_prompt="",      
+        safety_checker= None,    
+        requires_safety_checker=False,
         num_inference_steps=num_inference_steps,
         num_images_per_prompt=num_images,
         lcm_origin_steps=50,