Product Page Not Showing

Hi
I have just applied your plugin on my site to simply see how the site would look in grid view, but have decided it would not suit my store. However upon deactivating the grid view plugin, the stores product page no longer shows the store products.

Any suggestions as to how to fix this would be gratefully received.
Allan

https://www.ads-software.com/plugins/wp-e-commerce-grid-view/