Bug/Issue Greenhouse Bundle Crash

Hello all! I'm running the GOG version, and when I complete the Greenhouse Bundle for the Community Centre, the game will play through the cutscenes and proceed to the black saving screen. The game then freezes on "saving" and crashed. I've tried running with and without mods, working through the day/going straight there and back, and running as admin, no luck. Any suggestions?

 

I don't have the GOG version. But, I think others have mentioned that GOG has a 'repair/verify game files' option like Steam does.
Try that, but note that it'll overwrite any mods; so make a backup.

It's likely an issue with a corrupt gamefile, but if that doesn't work.
Posting a logfile would help.
Location on Windows: %AppData%\StardewValley\ErrorLogs