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PHP Noticeyii\base\ErrorException

Undefined index: dataProvider

$_GET = [
    'cari' => '',
];

Warning: file_put_contents(/var/www/dosen.unand.ac.id/runtime/debug/65f910e586e86.data): failed to open stream: Permission denied in /var/www/dosen.unand.ac.id/vendor/yiisoft/yii2-debug/LogTarget.php on line 64

Warning: touch(): Utime failed: Permission denied in /var/www/dosen.unand.ac.id/vendor/yiisoft/yii2-debug/LogTarget.php on line 82