PHP Core Warning – yii\base\ErrorException

$_GET = [
    'random' => '1790972850',
];

$_COOKIE = [
    'topics-session' => '1791145495.476.16490.726577|d197bbbd1d400bd72372bc93068ad169',
    '_csrf' => 'f3ea7e2f5f055322bdefef51e9c7194f8ad744827651116727f49c113bf7bc85a:2:{i:0;s:5:"_csrf";i:1;s:32:"J8MIGucKDPzB0ESXCin8KU3zJhhKJ4XP";}',
    'PHPSESSID' => '0bp5lpjlkp4amrlnsgccjtthb3',
];

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