PHP Core Warning – yii\base\ErrorException

$_GET = [
    'random' => '1790895822',
];

$_COOKIE = [
    '_csrf' => '3ceb01090cecdd6099192a4a4fe2f34d3061ff4acb5c7611bf2f56b6ff0f2829a:2:{i:0;s:5:"_csrf";i:1;s:32:"yWYUFDxFT3zZct7uY47IvIRMnW_dqS5n";}',
    'PHPSESSID' => 'pg97bk1bhsf9qvrco31d1rc477',
    'topics-session' => '1791229091.42.16615.77711|d197bbbd1d400bd72372bc93068ad169',
];

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