There’s a current bug in Booxter with Amazon US book fetches where certain searches are failing. It’s been fixed and submitted to Apple, so please be patient until the update is approved, thanks.
Search fix coming for Booxter
2013 -
07.09
If I have a license from you directly will i have to pay apple for the Amazon search fix?
No. Once the Mac App Store version is approved, both the Mac App Store and the website versions will be released with the update.