PHP Core Warning – yii\base\ErrorException

$_GET = [
    'random' => '1791083451',
];

$_COOKIE = [
    '_csrf' => 'bd70e582165c30ad6b1b74d21ca4bbac454ba6079c9609f7e3bc042b8325f33aa:2:{i:0;s:5:"_csrf";i:1;s:32:"c10_0dTjk_6MPNp9AngYBk4Bon9hcL8E";}',
    'PHPSESSID' => 'h6629s5q7f25ojmm83rcd70m20',
    'topics-session' => '1791204288.905.16901.688296|d197bbbd1d400bd72372bc93068ad169',
];

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