cannot remove parked domain

[lists2001-general63]

I want to remove the parked domain "aquinascafe.org" and replace it with another. When I try to remove aquinascafe.org, the following error message is displayed and the domain is not removed:

"Error from hooks wrapper: Domain action was not successfully completed [1]. Error: Error from park wrapper: Unable to find out which user owns the parked domain aquinascafe.org.:

 

[stpvoice]

Escalated for manual deletion.