Hi @fuoriluogoasti,
I hope you are well today and thanks for posting here.
It’s the known issue that will be resolved in the future version of Sparkling theme.
In the meanwhile to resolve the issue you can use the solution posted in the following reply.
https://colorlibsupport.com/t/wrong-title-attribute-menu-with-font-awesome-icons/#post-27746
Best Regards,
Movin