PHP Core Warning – yii\base\ErrorException

$_GET = [
    'random' => '1766302858',
];

$_COOKIE = [
    'PHPSESSID' => '7k6plopm2oupj1b4fo0fv4kse7',
    'topics-session' => '1766322992.488.15682.232476|d197bbbd1d400bd72372bc93068ad169',
    '_csrf' => 'ac9cdfcb12d272324d5dde68f027591fe60245fca4af84dd2c14206a6910a3c2a:2:{i:0;s:5:"_csrf";i:1;s:32:"bRauUePUs4OKsgJXgC_SqGWaJVPMCA9H";}',
];

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