[Restored]An error has occurred with Google Play payment.
We have confirmed that the Google Play payment problem has been restored within our app at around 12:00 on September 21(JST). You can now purchase coins within the app.
An error has been occurring in Google Play payment since around 7:40 a.m.（JST） on September 21, 2022.
【Detail of the problem】
The error code "DF-DFERH-01" is displayed and payment for coin cannot be made.
We have confirmed that this is a failure on the Google side, as the same error occurs in other services as well.
Please consider making purchases using other payment methods from web browser（https://global.bookwalker.jp/) until the situation is resolved.
We will update this article if there is any progress.
Thank you for your cooperation.
September 21, 2022