Hello, Tamers.

I apologize about the inconvenience.
We've found a few problems in the game after recent server maintenance:
1. Option Change Stone and Number Change Stone could not be normally used.
2. Unidentified items could not be identified.
3. Unidentified items were equipped without being identified.
We will upload a fix patch to resolve these problems.
If you're not logged in game, you may experience difficulty on logging in for about 10 minutes.
But you can try again after 10 minutes and you'll be able to download the fix patch.
When you stay online, the problems may sustain, so please remind to restart the game and download the game patch.

Thank you.