PHP Core Warning – yii\base\ErrorException

$_GET = [
    'random' => '1790908791',
];

$_COOKIE = [
    'topics-session' => '1791003653.88.16478.616604|d197bbbd1d400bd72372bc93068ad169',
    'PHPSESSID' => 'b1o0bo2b970922vmlne8d7ccp0',
    '_csrf' => '35397029de2c8b178940759d862c9180c190569498de7f74ce0f5954d007dbc4a:2:{i:0;s:5:"_csrf";i:1;s:32:"W8N30iVZvbdVUyYBEt4xForqcwygm8Bw";}',
];

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