Fixed the Nursery event. (stupidly forgot to delete an event page that disabled everything, thanks for pointing out the error). This should be save compatible.
The second issue is incredibly weird... The ruins get fixed after a certain point in the game, and the switch responsible for this never gets changed after turning on. It could be that you're misremembering your place in a previous save file, or accidently bypassing the event that rebuilds the ruins, I changed a condition in Zesurra's event files that should make it impossible to accidently bypass. I don't know what could possibly disable the ruins rebuilt switch though... Let me know if there are any further problems (To fix the ruins bug you might need to start a new save, but test it out first, please).
Uploading new version to the site right now fix, the fixed version should be 0.107a.