PHP Core Warning – yii\base\ErrorException

$_GET = [
    'random' => '1791243686',
];

$_COOKIE = [
    '_csrf' => 'e58632548f40aa13a20b6b82a3f26fc8ac2bd93909d75ee7838bee52de98d5eea:2:{i:0;s:5:"_csrf";i:1;s:32:"D1r8fiJcBH6CYJBYgaMcjl4Byj2Yl3hf";}',
    'PHPSESSID' => '658grj57spc2ksl0do14o10nb4',
    'topics-session' => '1791247455.787.16855.953697|d197bbbd1d400bd72372bc93068ad169',
];

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