I'm very sorry, this report has so little detail that it is essentially impossible to understand.
I suggest reporting the issue upstream in any case, as only upstream has the resources to even start investigating the issue. You will need to share extensive details as to your configuration and what steps may be triggering the issue. The upstream bugzilla is at https://bugzilla.samba.org Andrew Bartlett -- Andrew Bartlett (he/him) https://samba.org/~abartlet/ Samba Team Member (since 2001) https://samba.org Samba Team Lead, Catalyst IT https://catalyst.net.nz/services/samba Samba Development and Support, Catalyst IT - Expert Open Source Solutions