PayPal

Hi all,
i'm trying to set up paypal on my website, i have enterd all the info it asks but when it comes to checking out i get this error message:
Error: Unknown column 'subtract' in 'field list'
Error No: 1054
INSERT INTO order_product SET order_id = '4', product_id = '50', name = 'Horizontal Glove Holder ', model = 'Horizontal', price = '4.5', total = '4.5', tax = '0', quantity = '1', subtract = '1'

Not sure what to do but would like some help so i can get my site up and running.

Thanks all and ill look forward to your info and answers!

Thanks
ben

This is an opencart bug with that version. Not limited or related to paypal.
http://forum.opencart.com/viewtopic.php?p=97879#p97879

I recommend upgrading to 1.4.9.2
or you will need to manually apply the bug fixes in this post:
http://forum.opencart.com/viewtopic.php?f=31&t=19763