Integration with wpml

There is no specific integration, but Connections is 100% translation ready and has partial translations for many languages already included.

I hope this helps, please let me know.

Thanks for reply.

Very rare, look for example at these two urls:

The url principal is working fine:

https://alafave.org/members/member-directory/?cn-s=&cn-cat=14

But when I changed to spanish, I get an 404 error.

https://alafave.org/members-es/directorio-de-miembros/?cn-s=&cn-cat=14

What could it happening?

I think you should ask this question to the WPML support team.