PHP Core Warning – yii\base\ErrorException

$_GET = [
    'random' => '1790896137',
];

$_COOKIE = [
    '_csrf' => 'e16554ff370dc7e4531f457f33b50e04da865dbc7d9a539c14828f96ef244db2a:2:{i:0;s:5:"_csrf";i:1;s:32:"zWrTDLROlw3qLG_Kf5x3kgE4LaFfAXiT";}',
    'topics-session' => '1790898475.874.16940.800085|d197bbbd1d400bd72372bc93068ad169',
];

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