The following is the current situation regarding the issue wherein players are unable to access instances for Worlds under the North American/European Data Centers.

In regards to the emergency maintenance that was implemented earlier, we have resolved the issue for the confirmed character data for certain players that were having that problem.

For the issue with the server in charge of connecting players to the instances, we are still experiencing heavy traffic and are working on a solution to improve the server.

We are currently concentrating all of our efforts to address this issue, so we appreciate your continued patience while we work to address this matter.
We sincerely apologise for any inconvenience this may cause.