DenyAssignmentAuthorizationFailed

Question

Hello , I got this error when i tried to create an azure resource (my role is owner and i cannot contact the admin) :

{
  "error": {
    "code": "DenyAssignmentAuthorizationFailed",
    "message": "The client 'iheb.xx@Exxx.u-xxxx.tn' with object id '0142-4031-acab-c061744a1e33' has permission to perform action 'Microsoft.Resources/subscriptions/resourceGroups/write' on scope '/subscriptions/98e2-ddf2ceafac45/resourceGroups/test'; however, the access is denied because of the deny assignment with name '[UnusualActivity] Full Deny assignment on dbd6664d-4eb9-46eb-99d8-5c43ba153c61 for user 00000000-0000-0000-0000-000000000000 at root added' and Id 'd49127ba81c54b0b925fedfbdcb01d07' at scope '/'."
  }
}