Update app.py

app.py

@@ -213,7 +213,8 @@ async def add_exp(member_id):
             row_data = [member_id, member_name, xp, current_level]
             new_row_df = pd.DataFrame([row_data], columns=global_df.columns)
             print(type(global_df))
-            updated_df = global_df.append(new_row_df, ignore_index=True)
+            #updated_df = global_df.append(new_row_df, ignore_index=True) deprecated
+            updated_df = pd.concat([global_df, pd.DataFrame([new_row_df])], ignore_index=True)
             # initial role assignment
             if current_level == 1:
                 if lvl1 not in member.roles: