on the confirm page, try changing the code at line 1235 - 1241:
<?php
// WA eCart Redirect
if ($WA_Store_Cart->redirStr != "") {
unset($_SESSION['randomConfirm']);
header("Location: ".$WA_Store_Cart->redirStr);
}
?>
to:
<?php
// WA eCart Redirect
if ($WA_Store_Cart->redirStr != "") {
unset($_SESSION['randomConfirm']);
session_commit();
header("Location: ".$WA_Store_Cart->redirStr);
}
?>