Fatal error: Uncaught Error: Class 'yii\db\Migration' not found in /home/wittyly/public_html/live/hr-witty/migrations/m200804_051153_alter_contacts_table_update_columns.php:8
Stack trace:
#0 {main}
thrown in /home/wittyly/public_html/live/hr-witty/migrations/m200804_051153_alter_contacts_table_update_columns.php on line 8