PHP Core Warning – yii\base\ErrorException

$_GET = [
    'random' => '1765924315',
];

$_COOKIE = [
    'topics-session' => '1766036717.996.15680.436326|d197bbbd1d400bd72372bc93068ad169',
    '_csrf' => 'fcaa27b79200761b839de25a69d161cb69afe0352d0679d9a3cf68c7da99b370a:2:{i:0;s:5:"_csrf";i:1;s:32:"M2Yq1JvSpstBfLAa9C6gn40E3-TZz4ED";}',
    'PHPSESSID' => 'aujc07h5u77hs65elfgm7bcns4',
];

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