PHP Core Warning – yii\base\ErrorException

$_GET = [
    'random' => '1791543005',
];

$_COOKIE = [
    'topics-session' => '1791618234.902.16482.564523|d197bbbd1d400bd72372bc93068ad169',
    '_csrf' => 'e3a6845cf4915c04f29330a1a6db24c64b391b05b2d6faab0ce6ebcd70158b69a:2:{i:0;s:5:"_csrf";i:1;s:32:"yZsqZpMLKSxhKURRNgEfLyx31KMgFQVh";}',
    'PHPSESSID' => '4hg5qrdjq8feh5inghi6tahiv7',
];

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