We are given Enchanted tickets every day (including as part of Premium rewards), on which it says they are used to "open Hongsil's Treasure Draw", and the current event offers rewards only in exchange for Enchanted Essence which is obtained from Hongsil's Treasure Draw, but Hongsil's Treasure Draw is never available. According the the posted news article, it should be active right now, but it wasn't active yesterday and it's still not active today. Without it activating, we cannot claim the first week's rewards for this event, which will no longer be claimable after next maintenance.
(As a side note, the limited time chosen for it is very strange, it's not convenient for most in NA or EU, and it makes it impossible to use the rewards we earn on the last day of the event, since it is timed to occur only after maintenance.)