DA Client 10: Cannot search archive as directory recovery is unavailable

Community, 

I apologize if this is something simple, but I am having difficulty conducing a search in DA. I have a Case created, and when I specify a search, the search status errors with "Cannot search archive as directory recovery is unavailable". I also have an event in the EV event logs: 

APP AT - Customer ID:8 - Error processing Vault to Search off the queue: Searching Vault Thread - worker thread for index server:1 (8)

Vault ID: 1835

Number of tries: 5

Cause:Cannot search archive as directory recovery is unavailable

Any help would be greatly appreciated. Thank you!