PureBDCraft doesn't show up in marketplace

[Battlevader]

I'm using the Bedrock Edition on my Android Phone, I did buy VanillaBDCraft as that shows up in the marketplace but I can't find PureBDCraft.
I even clicked on the link that directs me to the PureBDCraft marketplace but the 'buy' button is completely missing.

Is this a known issue?
I really wanna use this instead of VanillaBD