Hi @margaretwporg,
Really what I want to say is that you have not put it, that translation is not in your .pot, and it should be there because otherwise its translation is not possible ;).
@rosvaldas you’re right, the same thing happens to me, if a group is private, it gives me an error to access the page, and it doesn’t redirect me to the login, if I deactivate wps login, it works correctly. In my case it is with BuddyBoss, which is a BuddyPress mod.