Help? (Invalid Parameter)?

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Originally Posted by biztekpc

Thanks for your help on the installing patches but I was able to fix it without installing any patches. The problem is now completely resolved.

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could you please post your fix?

just ninja skills

Does this problem affect all previous zencart versions or just 1.3.7? Can the patches be applied to all 1.3x versions or will that cause more problems? Do I have to reinstall the paypal module in admin for the patch to work?

The PayPal patches posted in the "PayPal patches" thread are for v1.3.7 specifically.
http://www.zen-cart.com/forum/showthread.php?t=56216

Installing them on older versions (without doing a proper upgrade to the newer version) will cause you great grief.