My website is having problems with adding items to cart. It is showing a black page when anything is added to the shopping cart or during checkout. The website was running fine for a year until recently. any help would be great. Also, I'm wondering if upgrading the site to the lasted version will fix it?
link to website = www.anime-remix.com
PHP version = 5.2.16
Zen Cart version = 1.3.8a
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