Dear Johanne,
Apologies for the inconvenience. We've just identified a bug in the latest release which would happen only when logged-on via the "Coding Only" interface. If you can confirm that this is the situation you are experiencing, then I can confirm that yes, data is being saved and it is safe to continue working.
I do realise that the error message is quite intrusive and does disrupt the normal workflow, I'm mentioning this because I'm afraid your collaborators will be slowed down until we'll publish the bugfix.
Luckily writing a solution won’t be difficult, so I expect we’ll be able to publish the bugfix tomorrow or Wednesday at the latest (a short service interruption will be necessary to make the fix public), in the mean time you should be able to keep working, albeit with the added annoyance.
If the error is showing up in any other situation, i.e. while not using the Coding Only interface, please let us know: this could be a different bug and I will need to investigate it separately (to confirm that there is no data-loss danger, and possibly identify a separate solution).
Many thanks for reaching out and apologies once more.
Sergio