I've run this script several times and kicked the Nintex timer jobs but always the same result : "Items deleted so far 0."

SCRIPT:

NWAdmin.exe –o PurgeHistoryListData -siteUrl $farm.Url -lastActivityBefore 2022-07-01 00:00 -state Error -verbose -batchSize 1000 -Silent

OUTPUT:
Parameters to purge workflow data:

Workflow Name: All workflows
State: Error
Last activity was before: 2022-07-01 12:00 AM Local
Site: http://blahblah.com 
10 workflow instance ids found in the Nintex Workflow database that match the filter criteria.
The following workflow instance ids have been selected from the Nintex content database(s):
98c19b93-2e1d-4a50-8fe7-83370f1f86d2 .... (I truncated this info here)
Querying Items in "NintexWorkflowHistory" on site http://blahblah.com
Items to process in this batch... 8
Items deleted so far 0.

How do you "commit" as SQL would say.  Thank you.