Notification e-mails changed from English to another language

Notification E-mails notifications sent to the cc changed from English to another language today. Did invoiceNinja change something. I cannot find any changes to our profile selections?

Example:

Kære Joe Buck,

En e-mail er blevet sendt til Islamorada Boat Works med faktura R000038 pålydende $91.56

Sorry for the trouble!

The invoice was sent in the correct language to your client however the notification was sent in the wrong language due to a bug from our release this weekend.

We’ve recently deployed a fix, future notification emails should be in the correct language.