PayPal Express Checkout Error (10001)‏

Hi folks!

I am still having the same error with some of my customers.

I checked with Paypal, and they said that the test they are doing went ok, so it has something to do with zen cart

to be exact, I got this in my email:

10001 Invalid HTTP Header - PPBaseException: CONTENT_LENGTH must be >0Backtrace: 84c96a9 84c9639 84b183a 80ea609 805a0d5 40bf69cb 8059aa1

is there a solution? should I reinstall the paypal mod?

thanks in advance!

So after a week of sporatic error emails coming in to my email , I decided to contact paypal.

took me 1/2 hr to explain what the problem was (they kept saying my sales volume changed, and work number changed - like what does that have to do with anything?)

anyhow, the end result?

they said there is a problem with zen cart, and told me to have someone look at the errors.

When I asked her specifically which areas I have to get looked at, she couldn't answer me.

Can someone please guide me to the right direction?

THank you!