Paypal IPN payment OK but no order recorded

Hi,
I'm using Zen-cart version 1.38a with Spanish default language.
I don't have any special module installed except a custom sidebox.

Website URL

I have checked all the settings of the Paypal module and everything seems to be OK. But when I pay for a product the redirection after the payment is just displaying a blank page and there is no record of the transaction in my Zen-cart admin but the money is transfered to my Paypal account. Bellow you can find the result of the ipncheck and the log of the paypal IPN module.
If someone could help me to resolve this problem i would really happy.

IPNCHECK.PHP - Version 1.3.9

IPN TESTING - Response Received via CURL -- COMMUNICATIONS OKAY

IPN TESTING - Confirmation/Validation response with fsockopen(): FSOCKOPEN() RESPONSE RECEIVED - Communications OKAY

I have attached a zip file with my Paypal IPN log

In the second log i saw a message about a IPN fatal error... but my ipncheck was OK so I don't understand.

You need to do this: http://www.zen-cart.com/forum/showpost.php?p=612520&postcount=25
and/or upgrade to Zen Cart v1.3.9. Your older v1.3.8a has several limitations, including the one causing the problem you just reported.

Thanks for you quick response DrByte!

But I find myself that the Paypal ExpressCheckout module work fine, so I will use this module instead of the IPN module.