Updated (Jun 11, 2021, 12:37 PM JST):
This problem has been fixed on Friday, June 11, 2021, around 12:25 (JST).
We apologize for any inconvenience this may have caused.
New registration and password reminder for Community Edition have been unavailable since Friday, June 11, 2021, around 11:04 (JST).
We are currently working on the recovery.
We sincerely apologize for any inconvenience this may cause.