If your Trial theme time expired, as result will show you a message with that information. For you to upgrade that version to a final version, you need to follow the next steps:
- Uninstall the theme to avoid the trial expired message.
- Then Purchase the BindTuning theme to apply on your SharePoint site.
- Install the purchased version of the BindTuning theme on your SharePoint site.
The BindTuning theme is now successfully installed.