I18n works on web and Android but **not** iOS


Our web page is working using the i18n (copaag.com) and our app in Play store (Copaag) but not the iOS app. I get this image, and the text over and in the buttons is missing:

After selecting one input field the text appears and Xcode shows this message:
[MC] Reading from private effective user settings.

And sometimes the text is not showing and this message comes in Xcode:
2017-01-08 19:04:51.046 sam[36128:5806566] Localization failundefined

Any suggestion on how to fix? What code do you need to give feedback?

We are using Ionic, AngularJS Localization Service written by Jim Lavin (http://codingsmackdown.tv)

Small bug job for freelancer. Issues with deploying app on iOS