Hi Akroune,
As i see, this info does not give full information for us to confirm.
You can raise a High Priority OSS to SAP, if this occurs in production.
Also try to execute the same date again and see if this occurs, then you can give it to SAP.
If you have got the error in test system, try to create a new network and see whether you get the same error.
Regards
Terence