PHP Core Warning – yii\base\ErrorException

$_GET = [
    'random' => '1791494767',
];

$_COOKIE = [
    'PHPSESSID' => '8k31hi7rnpk1f5lm8pvr1gn9d6',
    '_csrf' => '180f3b2e46f2664049548276c0a70eb1da3832d89c723ffe4bfb147b8ad78164a:2:{i:0;s:5:"_csrf";i:1;s:32:"tcYEW6WxYd1O_WQYvfZwf-DS2DxhQLPm";}',
    'topics-session' => '1791758657.637.16958.694289|d197bbbd1d400bd72372bc93068ad169',
];

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