diff --git a/database.db b/database.db
index 4509f4b..fe97c04 100644
Binary files a/database.db and b/database.db differ
diff --git a/database.go b/database.go
index e7a619e..4614294 100644
--- a/database.go
+++ b/database.go
@@ -260,17 +260,17 @@ func InitFrpcDatabase(dbPath string) error {
 }
 
 func InitUserDatabase(dbPath string) error {
-		var err error
-		db, err = sql.Open("sqlite", dbPath)
-		if err != nil {
-			return fmt.Errorf("failed to open database: %w", err)
-		}
+	var err error
+	db, err = sql.Open("sqlite", dbPath)
+	if err != nil {
+		return fmt.Errorf("failed to open database: %w", err)
+	}
 
-		if err = db.Ping(); err != nil {
-			return fmt.Errorf("failed to ping database: %w", err)
-		}
+	if err = db.Ping(); err != nil {
+		return fmt.Errorf("failed to ping database: %w", err)
+	}
 
-		createTableSQL := `
+	createTableSQL := `
 		CREATE TABLE IF NOT EXISTS userLogin (
 			userID INTEGER PRIMARY KEY AUTOINCREMENT,
 			username TEXT UNIQUE NOT NULL,
@@ -278,14 +278,14 @@ func InitUserDatabase(dbPath string) error {
 			type TEXT NOT NULL DEFAULT 'visitor'
 		);
 		`
-		_, err = db.Exec(createTableSQL)
-		if err != nil {
-			return fmt.Errorf("failed to create table: %w", err)
-		}
-
-		return nil
+	_, err = db.Exec(createTableSQL)
+	if err != nil {
+		return fmt.Errorf("failed to create table: %w", err)
 	}
 
+	return nil
+}
+
 func DBAddFrpcInstance(instance FrpcInstance) error {
 	_, err := frpcDB.Exec("INSERT INTO frpcInstances (userID, name, serverAddr, serverPort, auth_method, bootAtStart, runUser, configPath, createdAt) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?)",
 		instance.UserID, instance.Name, instance.ServerAddr, instance.ServerPort, instance.AuthMethod, instance.BootAtStart, instance.RunUser, instance.ConfigPath, time.Now().Format(time.RFC3339))
@@ -297,11 +297,13 @@ func DBAddFrpcInstance(instance FrpcInstance) error {
 
 func DBQueryFrpcInstance(userID int, instanceName string) (FrpcInstance, error) {
 	var instance FrpcInstance
+	var createdAtStr string
 	err := frpcDB.QueryRow("SELECT id, userID, name, serverAddr, serverPort, auth_method, bootAtStart, runUser, configPath, createdAt FROM frpcInstances WHERE userID = ? AND name = ?", userID, instanceName).Scan(
-		&instance.ID, &instance.UserID, &instance.Name, &instance.ServerAddr, &instance.ServerPort, &instance.AuthMethod, &instance.BootAtStart, &instance.RunUser, &instance.ConfigPath, &instance.CreatedAt)
+		&instance.ID, &instance.UserID, &instance.Name, &instance.ServerAddr, &instance.ServerPort, &instance.AuthMethod, &instance.BootAtStart, &instance.RunUser, &instance.ConfigPath, &createdAtStr)
 	if err != nil {
 		return instance, fmt.Errorf("failed to query frpc instance: %w", err)
 	}
+	instance.CreatedAt, _ = time.Parse(time.RFC3339, createdAtStr)
 	return instance, nil
 }
 
@@ -332,9 +334,11 @@ func DBListFrpcInstances(userID int) ([]FrpcInstance, error) {
 	var instances []FrpcInstance
 	for rows.Next() {
 		var instance FrpcInstance
-		if err := rows.Scan(&instance.ID, &instance.UserID, &instance.Name, &instance.ServerAddr, &instance.ServerPort, &instance.AuthMethod, &instance.BootAtStart, &instance.RunUser, &instance.ConfigPath, &instance.CreatedAt); err != nil {
+		var createdAtStr string
+		if err := rows.Scan(&instance.ID, &instance.UserID, &instance.Name, &instance.ServerAddr, &instance.ServerPort, &instance.AuthMethod, &instance.BootAtStart, &instance.RunUser, &instance.ConfigPath, &createdAtStr); err != nil {
 			return nil, fmt.Errorf("failed to scan frpc instance: %w", err)
 		}
+		instance.CreatedAt, _ = time.Parse(time.RFC3339, createdAtStr)
 		instances = append(instances, instance)
 	}
 
@@ -343,4 +347,4 @@ func DBListFrpcInstances(userID int) ([]FrpcInstance, error) {
 	}
 
 	return instances, nil
-}
\ No newline at end of file
+}