We've been getting error messages saying PayPal's IPN service can't connect with the page it's supposed to (ipn_main_handler.php).

The URL that the PayPal error message gives us is:
"https%3A%2F%2Fbrooklyntweed.net%2Fstore%2Fipn_main_handler.php"

GoDaddy (our host) says it's because the the URL is encoded. But where would I find this? I've checked the PayPal admin interface for IPN and it appears to be correct (no encoding). I've checked the admin interfaces for the PayPal modules on the cart and I don't see that url (or any url) in there.

I've also used the developer tool kit the search for this url and it comes up blank.

Can someone tell me where this url would be living?

Thanks,

John