Missing string in translation?

Hi, we use at language “formal german”. At subsrciptions there is a message with: “Edit your profile to update your email”. The string is in english instead of formal german.
i tryed to insert this missing german string, but i can’t find it in pot-file (using loco translate)
If i switch it to german(du), the string is translated allready…?!

where i have to set it to the right string, or is it hardcoded in php-files?

Pete