What happened here with fresh books after I updated firmware?

[KingKoopa28]

I paid 7 dollars for this app I updated my firmware to very latest in my Lumia from 1308 to the 14 version all went well apart from now I an getting this

https://skydrive.live.com/redir?resid=DA516D104913ABC4!415&authkey=!AAWnce-0Sa9Jm4Y

 

[Dustin Hodges]

probably because your phone technically does not support the software, and the update let the Windows Store know it had some incompatible feature.

Or perhaps the devs updated the app and removed support for your hardware (that's been happening lately.)