Lost all Sims4 progress following auto update to teen account

Hi - any help would be appreciated.

My daughter had her child account automatically updated to a teen account but Sims 4 loaded without any historical progress. So she followed guidance which involved copying the sims4 folder, deleting the original, restarting the mac and repeating the sims4 folder into ea folder.

However all progress from she started playing the game at Christmas did not return and still remains lost.  All expansion packs are still there and available, she just has lost all history.

The saves folder is empty and she has already emptied the trash can so the old sims4 folder is gone. That said, she copied and pasted it, so all content should still be in the pasted folder. 

Any ideas why the problem has happened and how she can get the last 5 months progress back?