"Shameless Marriage" is now cannot purchase at all

I try to purchase this doujin but only download button appeared and no purchase button and also not available in store (which included "Mating with Oni ~Mother & Daughter Chapter~" which still purchasable but not appeared in doujin section on store).

Is something wrong on both?

Please check.

Please read this

For some reason, the publisher, SHIKIMAYA, weren't able to continue distributing "Shameless Marriage" because of a third party. Here's a fourm post about it.

As for "Mating with Oni ~Mother & Daughter Chapter~", there are several other doujins with this issue.

Wow... What a sad thing and suck, I want to purchase this too but I still cannot understand why 3rd party doing this. I know this too late. Shame..... And now I cannot but it to support anymore. I hate it when this can force me to pirate one.

Where I can purchase this now? I cannot find it anywhere at all. Or I anyone have digital version of this, I would purchase it from you (it also probably illegal to do that damnit).