Error C4C Ticket docflow for Delivery document

Hi Expert,

I have an error when i call the documet flow from C4C to S4H when after the sales order creation in C4C, i try to create the delivery document.

The text error is:

Error when retrieving external document flow: SoapFaultCode:5 An internal error occurred. For error details check MPL ID AF2zCStQfIPNF3jxBtYyFsksuOHh in message monitoring or use the URL https://l700693-tmn.hci.eu2.hana.ondemand.com:443/itspaces/shell/monitoring/MessageDetails/%7B%22messageGuid%22%3

Attachment example:

Ticket 634 --> Order 194 --> (OK) --> Delivery 80000096 (Error)