fix submit bug in app.py

app.py

@@ -51,7 +51,7 @@ def add_new_eval(
     except:
         error_message = traceback.format_exc()
         print("Error:", error_message)
-        return
+        return f"Error:\n```\n{error_message}\n```"
 
 
     if LLM_type == 'Other':
@@ -98,7 +98,7 @@ def add_new_eval(
     csv_data.loc[col] = new_data
     csv_data = csv_data.to_csv(CSV_DIR, index=False)
     submission_repo.push_to_hub()
-    return 0
+    return "OK"
 
 
 def get_baseline_df():
@@ -246,6 +246,7 @@ with block:
                         LLM_type,
                         LLM_name_textbox,
                     ],
+                    outputs=submission_result,
                 )