Looks like some of the functions in this plugin conflict with the Amazon Product in a Post Plugin.
It looks like they're using the exact same text for their functions. Might want to think about wrapping functions in if(!function_exists('GetChildren')){ statements to prevent this problem in the future, that other plugin is already using them in theirs.
Ran into this problem from a customer submitting this issue here:
http://www.inmotionhosting.com/support/community-support/website/website-will-not-load
