Amazon link keeps saying "I'm sorry" > Likes and Comments

Can someone tell me how to fix tha Amazon purchase link? My book is out but its still not letting people buy through the Amazon.

Looks like you have a couple editions that are no longer on Amazon. Two of the four editions work fine for me.

You may want to set a default edition: https://help.goodreads.com/s/article/...

If the versions that aren't on Amazon were never published with those covers you might want to ask Goodreads Support to move the ISBN over to the valid editions and delete them.