Hello, @Ronny,
We are pleased to inform you that your issue has been resolved. Please clear your browser cache and check your site again. We have re-uploaded the language files to your site, as shown in the screenshots below:
https://postimg.cc/75nwZPKW
https://postimg.cc/2V4f08NS
Please delete your old language files and make any necessary changes to the new files.
Best Regards,
8Theme’s Team