PHP Core Warning – yii\base\ErrorException

$_GET = [
    'random' => '1791038405',
];

$_COOKIE = [
    '_csrf' => '4fcd32aadc3c9107d3721d33041ced1ee20d3124128fb0cfa10855b71bad3715a:2:{i:0;s:5:"_csrf";i:1;s:32:"Nnduw3iQAl2MP8AM0aefN9jvM0Sej6DY";}',
    'topics-session' => '1791119880.628.17043.811685|d197bbbd1d400bd72372bc93068ad169',
    'PHPSESSID' => 'dc5lqtp5oofnid9fmipmpcog53',
];

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