Upgrade from 3.9 to 4.50.2 - Issues with checkout not continuing

everything works on one store but not on the other which is the wholesale side of things. clicking the estimate shipping button in checkout does nothing. In javascript the error in dev tools is that it magnificPopup is not a function. If you continue on and click Checkout and then get to the Shipping Method and try to continue after select a method it does nothing.

http://colhouse.fdgweb.com is the site select wholesale from the popup.

Thanks!
Rob

can not browse your site, giving internarl error.
do you modify any view of default nop v4.50?
1. may be jquery not loaded
https://stackoverflow.com/questions/40218341/typeerror-magnificpopup-is-not-a-function
2. or inject jquery.magnific-popup.js like this Html.AddScriptParts("~/Scripts/jquery.magnific-popup.js");
https://www.nopcommerce.com/en/boards/topic/35904/magnific-popup-js-plugin-not-working-correctly-on-350

Rashed Khan wrote:
http://colhouse.fdgweb.com/
is working just fine. the javascript is being loaded.. If you look in dev tools in either firefox or google chrome I can see that they are being loaded. I do appreciate any help I can get though. :)

Thanks!
Rob

Still this issue is not resolved. I need to get this going. Anyone else with Ideas on why it is not working?

Thanks!

Rob

I have found that the CSS for magnificPopup is not loading that may be the issue.

Thanks!
Rob

Still not working... I have loaded the css. the Script is loading... yuet still the same error.

'Thanks!
Rob