Update app.py

app.py

@@ -356,7 +356,7 @@ def generate_video_from_image_90(
         "media_items": media_items,
     }
 
-    generator = torch.Generator(device="cuda").manual_seed(seed)
+    generator = torch.Generator(device="cpu").manual_seed(seed)
 
     def gradio_progress_callback(self, step, timestep, kwargs):
         progress((step + 1) / num_inference_steps)