PHP Core Warning – yii\base\ErrorException

$_GET = [
    'random' => '1790922253',
];

$_COOKIE = [
    '_csrf' => '2d330400b9a5ce3aec9fa842297d27992dc59696069f34374e368f231a61ef31a:2:{i:0;s:5:"_csrf";i:1;s:32:"xDdnE7skF2AoG9MTr-Dbcx-njf5UEiVz";}',
    'PHPSESSID' => 'gkj4k56fb44qaf02k80ub2a211',
    'topics-session' => '1791048268.79.16551.3915|d197bbbd1d400bd72372bc93068ad169',
];

$_SESSION = [
    '__flash' => [],
];