Hi,
Thanks for sending the log. It appears that you have the delete local backups disabled.
As the log shows “0116.376 (0) Prune old backups from local store: nothing to do, since the user disabled local deletion and we are using local backups”
To fix, please go to UpdraftPlus > Settings > Show Expert settings, Check the “Delete local backups” checkbox and click the ‘save settings’ button.
Please note that you would need to manually clear all the previous backup as it will not be counted in the retention rule settings.
Best Wishes,
Bryle