PHP Core Warning – yii\base\ErrorException

$_GET = [
    'random' => '1790878320',
];

$_COOKIE = [
    'topics-session' => '1790895741.339.16479.393468|d197bbbd1d400bd72372bc93068ad169',
    'PHPSESSID' => 'gpqi36o6e5hlmtnp6sbabujjl4',
    '_csrf' => '57a0331a40ff7e6353c381b34d650a27baac77d4432a6781a4d1bec0e79484d3a:2:{i:0;s:5:"_csrf";i:1;s:32:"L-mJHpbLpiX4M3C0STJiuMpQViOr6PPd";}',
];

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