Constant error message in Facebook friend invite
Whenever I try to connect with a friend on Duolingo via Facebook, I get this error (from within the Facebook pop-up) after selecting my friend, writing an invitation message and pressing send: "An error occurred. Please try again later."
There should be alternative ways to find your friends on this site. I know my friend is already registered, but the only way to circumvent the Facebook error is to manually enter his profile name and then add him as a friend through there. This needs to be easier.