Internal error when deploying a release on a group

I’m trying to create a deployment for a group.
I got a error 500 with the following resonse

{"error":"internal error","request_id":"e5855893-3887-439a-9c37-53ccb7557dde"}

Any hint to make it work ?

A few other information with this :
i’m using mender community 2.5.0.
When i try to delete and empty group with the following call :
, i get the same type of error :

"error": "no device IDs present in payload",
"request_id": "1d8e338b-95bb-42a7-8de0-48faeecbe98f"