Just checked the da_DK.po file you sent, the content inside is something else and doesn’t contain theme terms how did you expect it to work? you have to create the po file using poedit. It seems you used the WordPress .po file itself for theme which is not even required these days. Theme .po file is different from WordPress software .po file.
Please follow the tutorial.txt in language folder inside theme folder, have sent them to your email too.