Game won’t load or save after installing Enchanted by Nature

Endercat19​  Some of what you described sounds like this:

[CURRENT ISSUE] Several Issues after incomplete Installation | EA Forums - 11798965

So please try the suggestions in the first post, and let me know what issues still remain afterwards.

Hi, unfortunately after reviewing the list  and trying all the proposed solutions (including uninstalling and reinstalling the game) the issue still persists. I'm assuming it has something to do with either Enchanted by Nature or the update that was released alongside it.

Endercat19​  Try deleting and reinstalling only the new pack.  Close the EA App and make sure the EABackgroundService is NOT running in the Task Manager's background processes list.  Open [install location]\The Sims 4, here by default:

C:\Program Files\EA Games\The Sims 4

and delete the EP19 folder.  Then open the Delta folder and delete the EP19 folder inside that.

Clear the EA App's cache:

https://help.ea.com/en-us/help/faq/clear-cache-to-fix-problems-with-your-games/

Repair the game (EA App > Sims 4 > Manage > Repair), and download EBN again.  Then let me know what problems are still present.

I was playing and adjusted the display settings then it crashed and then I tried relaunching and it wouldn't start. And now, as I tried to repair it, it says I don't own Enchanted by Nature??? I was literally playing it last night! 

SweetVeggieAmai​  The error when repairing is a known issue:

Fairy Garden EA app Error - "Game Ownership Disabled or Deleted" | EA Forums - 12331060

For the crashing, you can delete Options.ini, in Documents > Electronic Arts > The Sims 4, to revert all your in-game settings to default.

I'd also like to see a dxdiag from your computer.  Click Windows key-R, enter dxdiag in the run box, wait for the scan to finish, click "Save all information," and save the file to your desktop.  From there, you can attach it to a reply using the paper clip (Attachment) icon included with the other formatting buttons.