Fatal error: Uncaught Error: Class 'yii\validators\Validator' not found in /home/mpolsk5/public_html/visibilityfuel.com/vendor/craftcms/cms/src/validators/TemplateValidator.php:20
Stack trace:
#0 {main}
thrown in /home/mpolsk5/public_html/visibilityfuel.com/vendor/craftcms/cms/src/validators/TemplateValidator.php on line 20