Translation missing for german language

Hi,
if I compare the two language files:

en_US file (3,067 Strings)

with the

de_DE file (2,090 Strings)

there are about 1,000 Strings missing.

The English file is from official GeoDirectory download-site and the German file is from:

https://wpgeodirectory.com/translate/projects/geodirectory/de/default/

For example in review box at the bottom of listing page you can read “Select a rating” or “Enter your location” in map input field or others (see screenshots attached), but I can not find this string in the language file.

I have tried to copy all English strings into the German file, but it doesn’t work – the GeoDir-Plugin doesn’t use these new strings…