Update app.py

app.py

@@ -148,6 +148,11 @@ def get_duration(
     duration_seconds, guidance_scale, guidance_scale_2,
     seed, randomize_seed, progress,
 ):
+    # --- CRITICAL FIX: Handle NoneType for input_image ---
+    if input_image is None:
+        return 120 # Return default duration if image is missing to prevent crash
+    # -----------------------------------------------------
+
     BASE_FRAMES_HEIGHT_WIDTH = 81 * 832 * 624
     BASE_STEP_DURATION = 15
     width, height = resize_image(input_image).size
@@ -265,7 +270,7 @@ with gr.Blocks(theme=gr.themes.Soft()) as demo:
         inputs=[input_image_component, prompt_input, steps_slider],
         outputs=[video_output, seed_input],
         fn=generate_video,
-        cache_examples="lazy"
+        cache_examples=False # Disabled caching to prevent startup errors
     )
 
 if __name__ == "__main__":