PHP Core Warning – yii\base\ErrorException

$_GET = [
    'random' => '1791199567',
];

$_COOKIE = [
    '_csrf' => 'cbe7ba018bd09016752d6896a35db822183f659aed1a50ce19771173676e4161a:2:{i:0;s:5:"_csrf";i:1;s:32:"wB_o-WH7S5AHbapgHAnppwEibDWlGM0G";}',
    'topics-session' => '1791246447.525.16490.543159|d197bbbd1d400bd72372bc93068ad169',
    'PHPSESSID' => '9jhbuk7i1ed69luba2ko4n10a2',
];

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