Update app.py

app.py

@@ -93,8 +93,8 @@ def apply_depth_based_blur_background(image, mask, strength):
 
 def segment_and_blur(input_image, blur_type, gaussian_radius=15, lens_strength=5):
     try:
-        if oneformer_processor is None or oneformer_model is None:
-            return "Error: OneFormer model not loaded."
+       if oneformer_processor is None or oneformer_model is None:
+        raise RuntimeError("OneFormer model not loaded.")
 
         image = input_image.convert("RGB")
         image = image.rotate(-90, expand=True)