Still working on a fix for this, however in the meantime I've created an official announcement for this outage:
https://jav-it.itch.io/jav-it/devlog/298354/downloads-offline-status-update-and-...
I estimate that I should have a working solution by the end of the week. However, if you can't wait and were looking for more features anyway, the Patreon edition does not suffer from this issue.