[BUG] Uncaught Exception TypeError - Cannot assign null to property Seven\Api\Response\Lookup\LookupFormat::$carrier of type string

[justpilot]

There is a problem that started today at 14:00 UTC.

Uncaught Exception TypeError: "Cannot assign null to property Seven\Api\Response\Lookup\LookupFormat::$carrier of type string" at /vendor/seven.io/api/src/Response/Lookup/LookupFormat.php line 17

{
    "class": "TypeError",
    "message": "Cannot assign null to property Seven\\Api\\Response\\Lookup\\LookupFormat::$carrier of type string",
    "code": 0,
    "file": "/www/htdocs/w00d4062/login.faceshop.de/vendor/seven.io/api/src/Response/Lookup/LookupFormat.php:17",
    "trace": [
        "/vendor/seven.io/api/src/Resource/LookupResource.php:22",
        "/src/Services/SMSService.php:65",
        "/html/api/appointments/notification_sms.php:24"
    ]
}

Calling this method:

public static function lookupFormat(string $phoneNumber): LookupFormat
    {
        $client = new Client(SEVEN_API_KEY);
        return $client->lookup->format($phoneNumber);
    }