Parked domain error - already configured

[tbuddy]

When I try to add turtlebuddymusic.com as a parked domain, I get the following error:

Error from hooks wrapper: Domain action was not successfully completed [1]. Error: Error from park wrapper: turtlebuddymusic.com is already configured.

This domain doesn't show up in my parked domain list, however.

Thanks for your help