Database Exception – yii\db\Exception

SQLSTATE[42S22]: Column not found: 1054 Unknown column 'updated_at' in 'field list'
The SQL being executed was: SELECT MAX(updated_at) FROM `pop_page`
Error Info: Array
(
    [0] => 42S22
    [1] => 1054
    [2] => Unknown column 'updated_at' in 'field list'
)
↵
Caused by: PDOException

SQLSTATE[42S22]: Column not found: 1054 Unknown column 'updated_at' in 'field list'

in D:\website\yii2cmf\vendor\yiisoft\yii2\db\Command.php at line 837