diff --git a/infra/db/postgres.py b/infra/db/postgres.py
index 90d8849..c64aa08 100644
--- a/infra/db/postgres.py
+++ b/infra/db/postgres.py
@@ -40,9 +40,6 @@ class PostgresConnection:
 
             # Tạo client với SSL context
             self.supabase: Client = create_client(url, key)
-            
-            # Test connection
-            self.supabase.table('discord_server').select('count').limit(1).execute()
             print("Successfully connected to Supabase!")
         except Exception as e:
             raise Exception(f"Failed to connect to Supabase: {str(e)}")
diff --git a/models/currency.py b/models/currency.py
index a494b90..5b27dd3 100644
--- a/models/currency.py
+++ b/models/currency.py
@@ -20,6 +20,7 @@ class DiscordCurrency:
         return {
             "id": self.id,
             "user_id": self.user_id,
+            "user_name": self.user_name,
             "balance": self.balance,
             "updated_at": self.updated_at
         }
diff --git a/repositories/currency.py b/repositories/currency.py
index d90ec0a..128ad60 100644
--- a/repositories/currency.py
+++ b/repositories/currency.py
@@ -64,13 +64,14 @@ class CurrencyRepository:
             response = self.table.select('*').order("balance", desc=True).execute()
             currencies = []
             for data in response.data:
-                currencies.append(DiscordCurrency(
+                currency = DiscordCurrency(
                     id=data.get('id'),
                     user_id=data['user_id'],
                     user_name=data['user_name'],
                     balance=data['balance'],
-                    updated_at=datetime.fromisoformat(data['updated_at'].replace('Z', '+00:00')) if data['updated_at'] else datetime.now()
-                ))
+                    updated_at=datetime.now()
+                )
+                currencies.append(currency)
             return currencies
         except Exception as e:
             print(f"Error getting all users: {e}")