Fatal error: Uncaught Error: Class 'yii\db\ActiveRecord' not found in /home/asosupro/public_html/backend/models/base/Tipoobservacionobservador.php:22 Stack trace: #0 {main} thrown in /home/asosupro/public_html/backend/models/base/Tipoobservacionobservador.php on line 22