PHP Core Warning – yii\base\ErrorException

$_GET = [
    'random' => '1791379978',
];

$_COOKIE = [
    'topics-session' => '1791412211.869.16814.706749|d197bbbd1d400bd72372bc93068ad169',
    'PHPSESSID' => '8anjt416bhgn6vc3e27bkp1mn4',
    '_csrf' => 'bb657ff58665a387c6bd1bf032d0878e68fcae9a3fb5fac0131fd7dc0c734b36a:2:{i:0;s:5:"_csrf";i:1;s:32:"0eBOvRIhfF1xKXyzM8ED_kxKdcT8rn-k";}',
];

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