PHP Core Warning – yii\base\ErrorException

$_GET = [
    'random' => '1791629155',
];

$_COOKIE = [
    '_csrf' => '9440e18e75c66ff627e915f311bf9c6b7d95754d32705b841a6b697e7d1fa776a:2:{i:0;s:5:"_csrf";i:1;s:32:"L0QRn_tRwFcS8d7DfCgs9busRRr5Ygbp";}',
    'topics-session' => '1791816794.412.17008.81382|d197bbbd1d400bd72372bc93068ad169',
    'PHPSESSID' => '413n1eb7nopk8qvjqi1r54o7e6',
];

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