In-app purchase is not supported

Hi,

When I attempt to purchase the "Blues Style" I get an error message stating that the, "In-app purchase is not supported." How, does one purchase the Blues Style?

Here's my info:
iReal Pro Version 2019.5 (190502) - macOS Mojave, ver. 1014.6

Thanks!

-D

Thank you, we received your email at support and replied to you.
Just for safety, Backup your songs (iReal Pro menu>Backup);
trash the app (from Applications folder);
install again from the Mac App Store.