Hello. This is the Gravity Co., Ltd. Ragnarok Zero Operations Team.
Here is the notice regarding the regular maintenance on November 20th (Wed).
※ During the maintenance period (10:00 ~ 12:00), GNJOY system maintenance will be conducted, and some services (login, web mall, cash charging) will be suspended.
■ Maintenance Time - All Servers: 10:00 ~ ~16:30 12:30~ ~16:30~ 15:30 (Revised on 11/20 15:11)
■ Maintenance Details
- The 
Prediction Event Box item will be removed.
Please familiarize yourself with the maintenance details to ensure uninterrupted use of the service.
Thank You.
Gravity Co., Ltd. Ragnarok Zero Operations Team