Desperate for Paypal Help

I recently hired a developer to build my online store, and after months of waiting, he quit, and I was left with barely anything built. I have muddled through my first try at using ecart, and with the help of tech support I have gotten very far. I now have everything working UNTIL the confirm page. I get the following error:

Fatal error: Call to undefined function PP_DirectPayment_Post() in /var/www/html/confirm.php on line 227

line 227 is this:

$WAGatewayResponse = PP_DirectPayment_Post($PP_DirectPayment_required,$PP_DirectPayment_itemized,$PP_DirectPayment_optional);
if ($WAGatewayResponse) {
$eCart1->redirStr = "checkout_success.php";
}
else if ("checkout_failure.php" != "") {
header("Location: ". "checkout_failure.php");
exit();
}

I checked the setting for Paypal and reloaded all the files.. but I have no idea where to go from here. PLEASE can someone help me with this? I am already 2 months late with this project and desperately trying to get it to work. Thanks!

It sounds like an include file isin't in the correct place. It may be too low, or it may not exist.

Do the paypal server behaviors on the page show as broken? They would if the include reference wasn't on the page at all and you could probably open them and reapply them to fix the problem.

If they aren't broken in the server behavior window you may have to find the include reference:

require_once("../WA_eCart/Adv_CO_Scripts/PP_DirectPayment_PHP.php");

and move it up on the page above the line with the error.

Great Call! Thanks... that worked! Now I just get the checkout failure page with this simple error:

Transaction Not Completed
We're sorry

Your transaction could not be completed.

So I guess I'm closer. At least its legitimately not working. I used my actual credit card to test it, and I called Paypal and they assured me the account is set up properly... so now can you possible help me figure THIS problem out?

Found one of your other posts and added the error message bindings to the page, and I can now see that the error is as follows:

Your transaction could not be completed.

Failure

10002

Security error

Security error

Security header is not valid

Still cant figure out a solution though.

You must not be using the correct security credentials... ie. username password or security key.