query_delivery_status is not working

[mech]

Hi it seems that query_delivery_status is no longer working. In the past I can get back delivery status, but now I got back:

{"requestError":{"clientCorrelator":null,"serviceException":{"messageId":"MESSAGE_NOT_FOUND","text":"Message not found for specified request ID","variables":null,"additionalDescription":null},"variables":null}}

Is this the official and maintained library for Infobip?

[mech]

The URL seems to have the string TODO in it:

/1/smsmessaging/outbound/TODO/requests/#{client_correlator}/deliveryInfos

Is that the correct API URL?