Hi… fly m destroy --force is supposed to resolve the most stubborn cases, although uneven success has been reported to date in the forum.
If that fails, then it would probably help to post more about the current Machine state, what operation you were originally attempting, whether the cited lease expiration keeps inching forward in time, 
…
(I’ve had luck in the past with manual fly m lease clear and fly deploy --exclude interventions, but those are context-dependent.)