PHP Core Warning – yii\base\ErrorException

$_GET = [
    'random' => '1791229676',
];

$_COOKIE = [
    'PHPSESSID' => 'f84uhrraggntoqcb5aujfnqrr2',
    'topics-session' => '1791274259.018.16490.748446|d197bbbd1d400bd72372bc93068ad169',
    '_csrf' => '12603704910d4e7293b6704de4996d4e8a026a762aac960983ab1c2f66ec99d6a:2:{i:0;s:5:"_csrf";i:1;s:32:"dTsuNyqNS10JNJSTJsEW_ALx_U_gJXaE";}',
];

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