Web page not responding

I am finishing a service for my clients to pay using credit cards. When
I request a payment I need to give them a "return address", but when
that return address is called, the browser stays with the message
"establishing .." for a long time, until it times out. If I click on the
address provided, the page loads very fast.

The error log has:

ZSRV_MSG0281: SSL: 186.182.80.162.
ZSRV_MSG0214: Certificado formateado incorrectamente o no válido, error
= 415.
ZSRV_MSG0281: SSL: 186.182.80.162.
ZSRV_MSG0251: Tiempo excedido en protocolo de establecimiento de enlace
de sockets seguros, error = 6011.

The error = 415 is quite frequent, Is there a way to solve it? has
anything to do with the time out?

You can try to "pay" in this link:

https://i5.abc.com.py/cat_buy.asp?ncompra=13563

The test credit card is 5418 6301 1000 0014 Exp 08/21 code 258

TIA

Raúl

-- Este e-mail fue enviado desde el Mail Server del diario ABC Color --
-- Verificado por Anti-Virus Corporativo Symantec --