If you want to translate in your Theme language. You need to follow the instructions
(1) You need to add the German language from settings > language sections.
(2) Install Shopify (Translate & Adapt) APP
(3) Go to the “Edit default theme content” from admin > theme > and See the image instructions
(4) Go to the localize page
(5) You need to select your language from here
(6) You can auto-translate or manually translate from this page
See the video tutorial to complete the steps