Fatal error: Uncaught Error: Class 'yii\helpers\Json' not found in /home/luxurytr/public_html/lt8/vendor/nystudio107/craft-seomatic/src/helpers/Json.php:21 Stack trace: #0 {main} thrown in /home/luxurytr/public_html/lt8/vendor/nystudio107/craft-seomatic/src/helpers/Json.php on line 21