Erro na API Rest para leitura de pedidos Object reference not set to an instance of an object.

A chamada na API api/oms/pvt/orders/ começou a dar um erro agora a tarde:

{

"error": {

"code": "1",

"message": "Object reference not set to an instance of an object.",

"exception": {

"ClassName": "Vtex.Practices.ServiceModel.Client.Exceptions.InternalServerErrorException",

"Message": "Object reference not set to an instance of an object.",

...

Antes do almoço estava normal