String given instead of array in missing documents

[brngrs]

Error:

foreach() argument must be of type array|object, string given {"userId":21,"exception":"[object] (ErrorException(code: 0): foreach() argument must be of type array|object, string given at /var/www/***/vendor/paynl/sdk-alliance/src/Result/Merchant/Get.php:40)

It happens when I try to get the result of "getMissingDocuments()", for one of our submerchants.

[woutse]

Thanks for your message. We'll look into it!