Sorry, I realy can't slove the paypal redirect SSL warning, need your help

[hihihihi88]

I am sorry that, I searched from this forum and google .... I still can't slove the problem with after paid by paypal then redirect to my site, it appear a SSL warning message.

 

 

here is my some information:

===================================

I am using Prestashop v1.4.6.2

Paypal Module v2.8.5

no SSL on my server

 

not using paypal express, no API setting, paypal account verified

===================================

 

in my BO , I have not set any SSL domain

 

How can I slove this problem

Thanks a lot~~~~~