PHP Core Warning – yii\base\ErrorException

$_GET = [
    'random' => '1791246665',
];

$_COOKIE = [
    'topics-session' => '1792036815.031.16490.761957|d197bbbd1d400bd72372bc93068ad169',
    '_csrf' => 'c936884e5d07cfdce9ca583ec875dd3030ef322477d57d601e6684a24f5d075ba:2:{i:0;s:5:"_csrf";i:1;s:32:"6AmjD3bS8GGr2s-37jLUoohXdgfi2cwB";}',
    'PHPSESSID' => 'agrm4n44embthge30m3ku2bed5',
];

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