The bug that started on July 1, 2022, at about 11:00 A.M. (Japan time) in which credit card payments would sometimes fail has now been resolved.
At approximately 11:00 A.M. on July 1, 2022, (JST) our payment processing company was undergoing some system trouble, resulting in purchases made via credit card failing. If you encounter this issue, please wait a while and try again or choose a different payment method. We apologize for the inconvenience. Once the problem is resolved, we will make an announcement. PayPal payments are not affected.