GM Ophelia at your service.
We have identified an issue where players cannot set Defense Team for Guild War Main Season 12 that has started April 30th (Sat).
Please note that the issue will be fixed May 2nd (Mon) [12:00 (UTC)]. Round 1 result will not be counted, and Guild rank and Round rewards will not be distributed. The Round 2 will proceed normally.
We sincerely apologize for the inconvenience caused by not being able to access contents smoothly, we will be sure to open Round 2 as smoothly as possible.
We apologize once again, and we will do our best to provide optimal gaming environment.