PHP Core Warning – yii\base\ErrorException

$_GET = [
    'random' => '1791013481',
];

$_COOKIE = [
    'PHPSESSID' => 'gvv1dcr732ulltqeufdk80sbe5',
    'topics-session' => '1791023796.506.16477.421196|d197bbbd1d400bd72372bc93068ad169',
    '_csrf' => '7bb32585b8bfed64753fd149bd2fdf1d534c9d5f5b8b63cb6329d9214b78c606a:2:{i:0;s:5:"_csrf";i:1;s:32:"QHmgngnjkmd14LwOxwU08XVMoD7hbDVl";}',
];

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