PHP Core Warning – yii\base\ErrorException

$_GET = [
    'random' => '1790898807',
];

$_COOKIE = [
    'PHPSESSID' => 'n3ife09mosktgeidqcplt3hg24',
    'topics-session' => '1790974293.48.17009.554887|d197bbbd1d400bd72372bc93068ad169',
    '_csrf' => 'cfd45fd86447d39010472d4b60accdac9183dd139500dc4c4a21e7e61905b0dda:2:{i:0;s:5:"_csrf";i:1;s:32:"TKq2LBmRcp__kMLdVbcko5qyU4sc7tJw";}',
];

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