Error 503 with Paypal payment

[freelanz]

Hello.

 

I have just almost finished a Prestashop 1.6.0.6 installation, but has an odd problem with Paypal Europe Free Module. I add a product to the cart, go through the shopping process, and when I click on Paypal button to make Payment I get 503 Error "Service Unavailable". If you browse back, and click again all goes fine!, and paypal screen appears with no problem.

 

I got in contact with hosting people and they say me that they don't even get the error. But me, and customer gets the error on a random way. Changed browser, cleared cookies, but it seems that nothing helps.

 

Which can be the problem? Anybody is experiencing somtehing similar?

 

Thanks in advance.