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Notice: Undefined variable: exception in /var/www/html/autocar/vendor/yiisoft/yii2/views/errorHandler/error.php on line 7

Fatal error: Uncaught Error: Call to a member function getCode() on null in /var/www/html/autocar/vendor/yiisoft/yii2/views/errorHandler/error.php:7 Stack trace: #0 {main} thrown in /var/www/html/autocar/vendor/yiisoft/yii2/views/errorHandler/error.php on line 7