PHP Core Warning – yii\base\ErrorException

$_GET = [
    'random' => '1791473763',
];

$_COOKIE = [
    '_csrf' => 'dae7a89d96135d1a59b7607b64129542f7d668847b6336f41ee5c451d022a5b6a:2:{i:0;s:5:"_csrf";i:1;s:32:"HIBX08ikzooeJIPGi7UfqszEZVJKFTDP";}',
    'PHPSESSID' => 'srqc8vg8qcvrrl4fues80lfqs2',
    'topics-session' => '1791477584.246.16975.737014|d197bbbd1d400bd72372bc93068ad169',
];

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