no filename parameter error message

app.py

@@ -391,10 +391,6 @@ def import_and_run_function(script_path, function_name, filename):
         print("FUNCTION TO RUN")
         print(function_to_run)
         params = list(sig.parameters.values())
-        print("PARAMS")
-        print(params)
-        print("PARAMS LENGTH")
-        print(len(params))
         if len(params) != 1 or params[0].kind not in [inspect.Parameter.POSITIONAL_OR_KEYWORD]:
             set_error_message("Error: Function must have exactly one parameter (filepath).")
             return None
@@ -494,6 +490,9 @@ def update_leaderboard(username, zip_file):
     
     try:
         updated_leaderboard = evaluate_model(username, python_script)
+
+        if update_leaderboard == None:
+            return None
     except Exception as e:
         print("Error in eval mode:", str(e))
         return f"Error evaluating model: {str(e)}", None