As in the screenshot, when a backup fails, in this case because my Google Drive connection had expired, there should be an option to retry the backup.
I’ve seen this repair a handful of times and it’s always due to an intermittent / easily fixable issue but once that’s resolved there’s no simple way to ‘action the repair’ i.e. by trying the backup again.
I think the options to ignore or retry would make muc more sense than the current ignore or learn more neither of which let you ‘repair’ anything.