When you see the flying llama image like that in your library it means that some files maybe missing or corrupt. Therefore the game can't read them. You'll either need to recreate the item or re-download it if you want the item. Or if you have them placed in a save. You'll need to re-save the family or lot to the library.
It's a little tricky to remove the missing/corrupt files from your library. But it's doable. - These are instructions for the PC version, but should be similar for Mac users.
1. Load the game and go to the library.
2. Click on a llama photo and note the date of the item.
3. Close out of the game.
4. Open File Explorer and go to your Electronic Arts\Sim 4 Folder
5. Open the Tray folder and sort by date.
6. Find the items with the same date as noted above.
7. Copy items to a temporary folder.
8. Launch Sims 4.
9. Llama items should be gone.
*If there are a lot of llama images, dates will need to be noted on each photo. It may be best to do this one at a time. To lessen the confusion.
If this doesn't help, or you need further help please ask about your issue over at AHQ's Sims 4 Mac Tech Help Board:
AHQ's Sims 4 Mac Tech Help Board:
https://answers.ea.com/t5/Technical-Issues-Mac/bd-p/The-Sims-MacThey are a lot more knowlegeable about Mac computers than I am.
