FancyBox not working properly

[PrPrO]

Hello,

we are currently working on our new website (http://www.nova.clm-pro.com/) and are experiencing some problems which I think would be with loading jQuery.

Currently using:
Joomla 3.8.11
VirtueMart 3.2.12

The FancyBox option is marked in the VM options, but it is not loading it at all, It firstly loaded the pop-up but without any arrow or any way to navigate through gallery, then I tried disabling it and enabling again and got to the current state. The problem occurs on every product details page (IE. http://www.nova.clm-pro.com/store-detail/fuselage-with-tail/up-to-2m-wingspan-4/fuselage-set-120-with-completed-tail-61-164-165-detail)

I would be grateful with any help.

Thank you in advance,
Matija

EDIT: I am not sure for what reason, but the fancybox open the pop-up, but still without the arrows to navigate through gallery

[GJC Web Design]

checked?

[PrPrO]

Yes, it is checked. It opens the pop-up, but without the navigation arrows.
EDIT: Tried checking and un-checking but it didn't change anything

[jenkinhill]

The problem is related to your template. If you use Protostar the fancybox works as expected with navigation arrows. See:
http://www.nova.clm-pro.com/store-detail/fuselage-with-tail/up-to-2m-wingspan-4/fuselage-set-120-with-completed-tail-61-164-165-detail?template=protostar