Update app.py

app.py

@@ -417,7 +417,7 @@ def run_tuning_task():
         os.makedirs(local_dir, exist_ok=True)
 
         # Save model using Hugging Face format
-        merged_model.save_pretrained(local_dir, safe_serialization=True)
+        merged_model.save_pretrained(local_dir, safe_serialization=False)
         tokenizer.save_pretrained(local_dir)
 
         # Push to Hub