Hi there, unfortunately I have the same problem. I tried the free Bard Version in german, upgraded to Pro and now the page is in english language. WP Settings say language is german. I watched the video you posted and installed Loco Translate. But when I choose the german template it keeps telling me the exact same thing: the package is not fully configured yet. Although translation status is 100%.
What can I do to be able to use the template? As temporarily solution I decided to add a new language and translated the important terms like “Read more”, “Back to top”and so on by myself. This worked fine but I´d rather install the template than translate manually further 323 terms.
Thanks for your help!