PHP Core Warning – yii\base\ErrorException

$_GET = [
    'random' => '1765965890',
];

$_COOKIE = [
    '_csrf' => '3561c899c3f4a7260887ef34df4a2f39dbc1e7557fb6e1641b6c2fce4c7b7074a:2:{i:0;s:5:"_csrf";i:1;s:32:"RPv4E4gFgJriSgorhjaAIm4vh0ea0407";}',
    'PHPSESSID' => 'trfatdmpnln5tj3ad38pbg3ro6',
    'topics-session' => '1765971380.568.15684.162379|d197bbbd1d400bd72372bc93068ad169',
];

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