All my backup deleted

Hi,

I’m connect to my Urbackup server this morning and the backup disk is empty !!
All backup were deleted.
3 days ago, there was 12 Go of free disk spaces on the backup disk. Server gave me an alert.
I had deleted old account and I hopes that it would be enough.
What’s happened ?

size of the backup disk : 2,7 To
Number of clients : 150
Server : 2.2.11
clients : 2.2.6

Thanks

Are you running the server under windows…?

Hello,
Yes windows 2016