Voicemail notification for other languages

I am using VM notificación with euro spanish, there is not a language setup as in other modules, I can only customize two messages (greetings & instructions1), but the module has more messages located at /var/www/html/admin/modules/vmnotify/sounds, if I sustitute that messages for a new messages I receive the warning system “SECURITY NOTICE: You have 8 tampered files”. How can solve this? thank you in advance.

Where I said messages I really mean sound recordings, sorry

You are correct at this time we have not localized any of the recordings. This is being worked on for FreePBX 13 with all the new sound prompt system.