PHP Core Warning – yii\base\ErrorException

$_GET = [
    'random' => '1790883365',
];

$_COOKIE = [
    'PHPSESSID' => 's4ophc0q1g3opegqmn3ule0di1',
    'topics-session' => '1790891883.832.16482.363435|d197bbbd1d400bd72372bc93068ad169',
    '_csrf' => 'c0b4792482c80310e4e10167187265e1e4de0d8280d99f15b031825f23505526a:2:{i:0;s:5:"_csrf";i:1;s:32:"jUG8BX81OUmoPF3FVbnJBuVkJ6AP6M1e";}',
];

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