If you still get a crash, please upload your SMAPI log to https://smapi.io/log (see instructions on that page) and share the link here.
We may have to remove some old mod characters from the save file.
Ah yea, bit of a doozy.
The SaveGameInfo file error is for another save: "Lemonade_295856465"
While the one Ponponlemon11 provided is "Lemonnee_296053861".
So, we can ignore that for now.
The IndoorPot errors; from what I've seen are generally from JsonAsset mods being removed.
And, the initial error of MarlonFay; along with all the 'invalid villager' errors in the SMAPI log seem to mostly be from SDV Expanded.
I can see about removing the corrupted data. But, it'll probably take a little while.
----------------------- @Ponponlemon11
Can you try loading your other save: "Lemonade_295856465"
This is the one with the SaveGameInfo error that Kreeate referenced. If that's crashing as well. Upload it here; while I'm working on your first save. So we can take a look.
Ah, that's good to hear.
So, I just finished up as well. I deleted 2 NPCs from SDV Expanded: MarlonFay & GuntherSilvian
And, then went through, and tried to delete all the corrupted JsonAsset items that were left over after those crop mods were deleted.
I think I got everything that needed to be deleted. I tested a little bit in-game, and it looked okay on my end.
But, let me know if I missed anything, or if further issues arise.