Update app.py

app.py

@@ -732,7 +732,7 @@ def create_interface():
             fn=auto_ensemble_process,
             inputs=[
                 ensemble_audio, ensemble_models, ensemble_seg_size, ensemble_overlap,
-                output_format, ensemble_use_tta, model_dir, output_dir,
+                output_format, ensemble_use_tta, model_file_dir, output_dir,
                 norm_threshold, amp_threshold, batch_size, ensemble_method,
                 ensemble_exclude_stems, ensemble_weights
             ],