Translations with WPML

I’m looking for a button plugin to access Whatsapp. I found yours and from analysing the others it seemed the most interesting, so I can upgrade later if necessary.

At the moment I’ve installed the Free version and translated everything with WPML and some languages don’t appear!
In the native language PT, everything is fine. But if I change it to EN, it doesn’t show up! If you open it in an “anonymous” browser then only the PT (original) language appears.

Isn’t multilingual an option in Free, even though you can do the basic translations using WPML?

The page I need help with: [log in to see the link]