Error

PHP Noticeyii\base\ErrorException

Trying to get property 'title' of non-object

$_GET = [
    'title' => 'giai-phap-nha-thong-minh-co-nhung-tien-ich-gi-',
    'id' => '5',
];
Warning: session_name(): Cannot change session name when headers already sent in /opt/lampp/htdocs/vendor/yiisoft/yii2/web/Session.php on line 308 Warning: session_save_path(): Cannot change save path when headers already sent in /opt/lampp/htdocs/vendor/yiisoft/yii2/web/Session.php on line 331 Warning: file_put_contents(/opt/lampp/htdocs/techber/frontend/runtime/debug/6606ba72dd73c.data): failed to open stream: Permission denied in /opt/lampp/htdocs/vendor/yiisoft/yii2-debug/LogTarget.php on line 57 Warning: touch(): Utime failed: Permission denied in /opt/lampp/htdocs/vendor/yiisoft/yii2-debug/LogTarget.php on line 75