The Chosen Ones

Can anybody post the solution for the Teleportation puzzle in chapter 6?

And how can i fight the Epic boss in Chapter 6?!...the barrier was up before Galeoth got freed and after he was freed no Skeleton Champions came up...only the one in the middle was present! No cinematic occurs! Is this a bug?

And one more thing, how is it possible to beat the Runic Statue in Chapter 7? I mean even after 10 minutes i wasnt able to decrease its HP at all!