Please fix! – Pirates / Shall we date? Review

I love otome games. NTT Solmare was one of the first companies that I used to always buy stories from back in 2011! I can’t buy any of the stories in this app because of “invalid product ID”. Please fix this! I really want to buy several of the stories and I can’t because of this error.
Review by Kieurious on Pirates / Shall we date?.