PHP Core Warning – yii\base\ErrorException

$_GET = [
    'random' => '1790919119',
];

$_COOKIE = [
    '_csrf' => '17f7edb83553d2416c75b1a576cb7213e7c64c918c5bf22d95f45dda8474adaaa:2:{i:0;s:5:"_csrf";i:1;s:32:"Rz9mqnZ9vGN-JOLRbbS5YONIMypqBXkf";}',
    'PHPSESSID' => 'oe66b9if3nble2uiujokdpo177',
    'topics-session' => '1791279967.173.16481.406266|d197bbbd1d400bd72372bc93068ad169',
];

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