WP 4.7.3 and zBasicStore short code

The short code crashes the page. It will only display any text with the Short Code removed. I have used this app for a a couple of years. It seems to crash with new WP versions. It has not been tested under this current version and clearly states that. But I like others need to get it running again. My non-profit depends on Zazzle royalties for Samoyed rescue. I am asking Ilene to please fix this problem as soon as she can.