PHP Core Warning – yii\base\ErrorException

$_GET = [
    'random' => '1791223744',
];

$_COOKIE = [
    '_csrf' => '65c6230777c78d54061281b6a5bf92dd841852c5610d9910dd37e27c21bf9980a:2:{i:0;s:5:"_csrf";i:1;s:32:"kwmVHC1mS2b570aSw-acIeIveNkchexG";}',
    'topics-session' => '1791265321.333.16479.399177|d197bbbd1d400bd72372bc93068ad169',
    'PHPSESSID' => '7qu0vok9i81iddns06r12uclq3',
];

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