Admin should never be in the URL! Please remove it..

Admin should never be a part of a component, plug-in or module url path! NEVER! Please remove it...

And if you have added "Admin" in Eshop other modules you should removed them...

Here are the links you have in the module and should be removed....Before someone site gets hacked, by way of Eshop Module...

www.mmmmmmmm.com/modules/mod_eshop_manufacturer/admin/style.css
www.mmmmmmmm.com/modules/mod_eshop_manufacturer/owl.carousel.js

Thanks....

the word "admin" in a URL does not serve as a backdoor for any website. The inclusion of the word "admin" in a URL also does not automatically create a hackable entry point.

Could you be a little more specific about the issue?