The fault message says the schedule has coverage targets, but no in-service assets on this site match them yet.
Cause Coverage is attached to the schedule through asset classes, locations, or specific assets, but none of the linked targets are currently in service, or the schedule scope does not match any active assets.
Fix
Check that the assets or locations attached to the schedule are active and in service.
Link additional asset classes, asset definitions, or direct asset attachments to the schedule coverage.
If the scope is too narrow, adjust the schedule coverage so it matches assets that exist on the site.