PHP Core Warning – yii\base\ErrorException

$_GET = [
    'random' => '1766159896',
];

$_COOKIE = [
    'topics-session' => '1766172407.656.15685.653466|d197bbbd1d400bd72372bc93068ad169',
    '_csrf' => '7dd8ef33e9eb58bafa2470f8d733642986c7b9e0f107c329f4f4920ee24aa332a:2:{i:0;s:5:"_csrf";i:1;s:32:"w_GGTkSHHRhWdMM077fkenoIYoAs_QNO";}',
];

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