PHP Core Warning – yii\base\ErrorException

$_GET = [
    'random' => '1790970862',
];

$_COOKIE = [
    'topics-session' => '1791194154.262.16974.147196|d197bbbd1d400bd72372bc93068ad169',
    'PHPSESSID' => 'a0tfkim8rrc09kaib2ev43vdf2',
    '_csrf' => '02f46b8e4e6e121be2cdb599edb3e892f8eea352114fcd466f7f9e7d4eecf0c5a:2:{i:0;s:5:"_csrf";i:1;s:32:"b-zOZXyRZRkrqFbQUaFCnM-AbUrE5tJR";}',
];

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