Marraige before upgrading the house breaks the save due to a map file not existing
SMAPI-latest.txt

That isn't related to SMAPI. It looks like you're missing some of the game files; you can verify the game integrity to reset your XNB files to default. (That will remove any XNB mods, so you'll need to reinstall those.) If that doesn't fix it, you can try posting in the Stardew Valley support forums.