Crunchyroll Audio on PS4?

I have the crunchyroll app on ps4 and only watch anime in japanese. (Premium acc.)

However, I already have several series that run automatically in German and I can't change the language to Japanese. On the mobile app this just doesn't work on the ps4.

The app language is already on the default.

For help with the question "where can I put the audio in Japanese on the ps4" I would be super conceivable! ♡♡♡

In Settings → Subtitles → Language. However, some series are only available with English subtitles. Go to Settings and Language to Default in the main menu and if your Ps4 is set to German you can also have German subtitles.