My Llamas Are Broken?

I entered my llama's into a fair, and ever since they haven't been working. At first, it wouldn't eat in its shed and wouldn't dirty it's shed. Like it wasn't there. But it would wander around outside it. Then when it (sadly) died, I tried to buy a new one and it wouldn't go into the shed. It kept saying the shed was empty. When I clicked, "Assign Animal to Shed" the llama was there but greyed out. I deleted the shed and got a new one and could add it, but it again acted like the llama wasn't there. I even tried to buy another llama, but it didn't work. 

As far as I know, I don't have this problem with cows. But if anyone else has seen this, please let me know. I do use mods and CC, and I do have a CC animal shed, but my llama is in the Cottage Living Shed, so I don't think that's the problem. I have all the packs except the latest 3 expansions. (Love struck, Life and Death, and Businesses and Hobbies.) Nothing is in the shed's way, so I don't know what's going on. If anyone knows what's going on or what could be causing this, please let me know. Or if this is already a problem please send me to the forum.