Lỗi
Notice: Undefined variable: data in /var/www/html/yii/framework/views/vi/error.php on line 22
Notice: Trying to access array offset on value of type null in /var/www/html/yii/framework/views/vi/error.php on line 22
Fatal error: Uncaught Error: Class 'CHtml' not found in /var/www/html/yii/framework/views/vi/error.php:23
Stack trace:
#0 {main}
thrown in /var/www/html/yii/framework/views/vi/error.php on line 23