How can I find out which holds people are on?

I'm unfamiliar with Discovery Accelerator, typically this is software we let Legal use to manage litigation holds.

I deleted about 5 vaults, and noticed that they aren't being removed. I checked the Eventvwr and I see

Following archive could not be deleted as it contains items that are on hold, or their retention category does not allow deletions, or a compliance device retention period prevents them from being deleted.

Archive Name = [redacted]

Archive Entry Id = 133B1F07B3DC0394FA99E3857DE591E0B1110000

Total items on hold = 10

Any ideas where I should start looking? Is this a DA hold that is preventing me from removing these archives?