New update has been pushed with a few fixes including a fix for the Shield/Hull integrity issues:
https://itch.io/t/3447241/hotfix-22124
Online saves should now be working again, although any runs that happened during its outage will not be recorded (at this time) online, they will however still be available locally and eventually we intend to have issues like this rectify themselves in the background once service is restored. Please let us know if there are any further issues with the online system, thanks :)