The german translation of "repeat" is currently "Widerholen" but should be "Wiederholen".
Created attachment 2752 Patch to fix the issue as well as another one.
Created attachment 2753 git-format-patch output
Please register on Tx (translations.xfce.org) and tell me your username. Next I can add you to the translators group and give you privilege to upload.
I registered as user "cweiske".
Happy upload :)