WickedWhims - Animation not Appearing In-Game

[Empowerland]

Heya 👋
I hope you're doing well!
I have been trying for a while now to import an animation I made in Sims 4.
However, despite the game recognising the existence of the package file, the animation doesn't appear anywhere!

You can find the package file below:
🔗 https://we.tl/t-1KyIH5F574

You can find the XML file below:
🔗 https://we.tl/t-22jbhh21wQ

Thank you for your help! 🙏🏻