FormatException: Input string was not in a correct format.

[TCygnus]

Hello, I'm having trouble fixing this problem. Here is my log: https://smapi.io/log/8a24774225334f58812ebdb01aa48c86
It's on the fourth page, but I believe it's better farm animal variety. Any help will be welcome, thank you.

edit: yes I know about the duplicates and the other mods.

 

[Cassialli]

You already have "Guine" and "Ostrich" animals so they won't be added because another mod already adds them. It may be showing up because of the duplicates.