White Screen of Death on products page

Hello. I just recently purchased the Marketpress plugin.

I created some products, and decided to go to the products directory "mysite/store/products

But I am presented with the white screen of death.

One time I reloaded the page, and a Fatal Error came up saying

"Fatal Error: Allowed memory size of *** exhausted blah blah blah in wp-includes/jquery.php

Help?