Fatal error: Uncaught Error: Class "yii\helpers\StringHelper" not found in /home/apolo/public_html/sgdpr/vendor/yiisoft/yii2-gii/generators/crud/default/search.php:12
Stack trace:
#0 {main}
thrown in /home/apolo/public_html/sgdpr/vendor/yiisoft/yii2-gii/generators/crud/default/search.php on line 12