feat: add error detail log

competitions/app.py

@@ -3,6 +3,7 @@ import os
 import threading
 import time
 import io
+import traceback
 from typing import Dict, Any, List, Optional
 from urllib.parse import urlencode
 
@@ -351,6 +352,7 @@ def new_submission(
                 return {"response": f"Success! You have {resp} submissions remaining today."}
             return {"response": "Invalid competition type"}
     except RequestException:
+        logger.error("Hugging Face Hub is unreachable, please try again later:", traceback.format_exc())
         return {"response": "Hugging Face Hub is unreachable, please try again later"}
     except AuthenticationError:
         return {"response": "Invalid token"}