Ultimate Facebook - Grant Extended Permissions Doesn't Work

I've read through several threads on here and I'm just not able to solve my problem. When I go to the settings, I've connected the application correctly. But I cannot get the Grant Extended Permissions dialogue to come up.

In fact - I have the exact same problem, same type of screen shots in this thread: https://premium.wpmudev.org/forums/topic/ultimate-facebook-grant-extended-permissions-do-not-display#post-180036

I see there may be a solution in here: https://premium.wpmudev.org/forums/topic/grant-extended-permissions-and-like-do-not-work#post-119538

But I don't know where to define the WPLANG.

Help?

Thanks.