Hello. First thanks for this great Plugin!

I have created a new json on /lang/de and translated all in german and it works but the Broadcast Message won´t change.

I would appreciate about an answer.

Some plugins do not handle localization with broadcast messages properly. To fix that, they would need to loop through all players and send the localized message per player. To change it for all though, edit the file under oxide/lang/en or the default language you have set.