Recurring Nightmare bug

https://ibb.co/igzpCq

i'm supposed to talk to someone but there isn't anyone =/
i am missing something or there is a bug ?

thanks

Usually you're flushed to a small "island" outside the arena, and that's where you find Lily. Did it happen and you came back to the arena or you were left there after the boss died?

I think the waypoint to Act 10 is automatically unlocked, though, so you can progress further.