Every day I check for updates, but nothing has updated here for months.

Is Liberkey now abandonware, to be deleted, or just on an exceptionally long holiday?

Mine just stopped syncing exactly a year ago. I thought the developer had gone on 'European leave'.
Maybe some cleaner and the .lbk link ... ?
Redownloading Ultimate Suite, and then check for any others I may have added and take it from there ...