Fatal error: Uncaught Error: Class 'yii\helpers\Json' not found in /opt/lampp/htdocs/squidv2-stage-api/modules/rbac/views/route/index.php:6 Stack trace: #0 {main} thrown in /opt/lampp/htdocs/squidv2-stage-api/modules/rbac/views/route/index.php on line 6