I translated some strings with this method:

1. Then go to Loco Translate > Manage Translations
2. Click "New Language" for the current active theme (if you didn't created it yet, otherwise ignore this step). On the new language page, choose these options – Screenshot
3. After that you will be redirected to the editing screen for theme translations. Before you continue with your translations make sure the current language of your site is selected – Screenshot
4. Follow these instructions to learn how to translate strings – Screenshot
5. The changes will be applied immediately – Screenshot

So my Problem is now, on the 404-Site it works, my translated strings shown up in German.
http://whitegrid.gallery/shop/stuff

But on the shop site, I also translated "Prev" and "Next" (Pagination) and "Showing 1–16 of 25 results" but it didnt work.

Please help!

Thanks Steffi

Prev and next and Showing 1–16 of 25 results works out.

But  in the class="lab-mini-cart cart-visible" 

Checkout should be "Zur Kasse"
Subtotal should be  "Zwischensumme"

and so on....