PHP Core Warning – yii\base\ErrorException

$_GET = [
    'random' => '1791397627',
];

$_COOKIE = [
    '_csrf' => '991c10f8b63ddb549030eaa6283030ce011bc9d1313c8e8b537e30040c2319cca:2:{i:0;s:5:"_csrf";i:1;s:32:"p_Z60R8lG_vmDfzRPrjDH3Q4606M_iRL";}',
    'PHPSESSID' => 'fal7m91sgnj8glc5ketn8odvd2',
    'topics-session' => '1791575343.691.16479.397519|d197bbbd1d400bd72372bc93068ad169',
];

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