Hello, this is Project Moon.

In Version 1.82.0, updated July 17th, we have identified an issue where the 'Restore Purchase' button does not work under certain circumstances, and have addressed it.

[Issue]
When attempting a purchase through Steam, upon failing to communicate with Steam servers, the 'Restore Purchase' button does not work

[Cause]
Upon communication failure with Steam, due to the response value being changed, the error flagging function did not work

[Solution]
Fixed the logic that was causing the issue

This issue has been resolved without a separate client update or an in-game resource download.

We sincerely apologize for the inconvenience.