@KetrindollEA does not support mods, although it does not prohibit using them. Mods are scripts "added" to the game by their creators. After each update, these mods may be corrupted, because their creators, not EA, should adapt them to the changed game scripts.
So if you want to play with mods you have to check after each game update whether they are still compatible and whether there are new updated versions of these mods. Such information is given by most creators on their websites. Without confirmation that this old mod is safe, it should not be placed in the game after the update
I don't work for EA