Express Checkout

[MaxBe.eu]

Hello to all,

 

from search google console, I noticed that on all products is blocked by robots.txt file the following url:

 

https://www.mydomain.com/shop//modules/paypal/express_checkout/ajax.php?get_qty=1&id_product=43&id_product_attribute=&_=1463097600031

 

Paylpal on my form, the express checkout function is disabled. Why this url appears in the product pages?

 

I noticed that before the "modules" folder there are two //, this is right?

 

Thanks in advance for your support!