Error message when updating from shop history

I got an error message (on screenie attached) when I was trying to update from my shop history. OS & Language: Windows 7 Home Premium 64 bit - English Browser & Version: Firefox 3.6 - English I was wondering what the error means, and if there is anything that can be done to fix it. Thanks very much :)
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Image icon neomallers error.PNG157.37 KB

http://www.neomallers.com/faq?type=view&id=47
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Thanks very much, and sorry for wasting your time by not checking there first.

I've done that, but it's now coming up with the same error for a different item (adopt a grundo coin) =/

I keep getting that error too. But I could never read it because the progress bar would be in front of the popup error box. It happens every few days with different items each time, and I just fix the database for each item and try again until it works.