Folks, unless someone has any luck with Google's data-recovery "service", then it really looks like they just deleted all the old Realtime API data last September. So if the script hadn't been opened since December 2018, then it has just gone. They didn't warn developers, and they could have exported the data instead, but they apparently chose to just delete it. It's utterly gutting for me, I'm sure for the people at MindMup and all the other apps that were hit< and worst, for you writers who've lost work. I wish there were something I could do, but Google have been completely unresponsive to me.
To open a backup if you have them, you have to "Import from backup" in the top YMS menu. It's an upgrade feature, but I'm going to change that. To get you going sooner, just email me at support, and I'll give you a short free upgrade.
I am so sorry, folks.
- Jake