How to scroll to the desired block using the fullpage.js plugin and slimscroll?

Question

JavaScript

It's happening here.
colorbar.acspro.ru
I use the fullpage.js plugin

In conjunction with the SlimScroll plugin

The first 3 blocks are FullScreen. In the latter, SlimScroll rises.
In the First block, I have a menu (icon in the upper right corner). It has an item Contacts which refers to id="screen-contacts" So. I've been trying to scroll to the right block for a week now. Tried many options but lacks knowledge and experience. Dear gurus, please tell me how to do it.

Answer 1

Who cares about my crutches
for Fullpage.js, I do this

afterLoad: function(anchorLink, index) {
            if(index == '4'){
                if(window.ContactFlag==true)
              $("#products-screens .fp-scrollable").animate({ scrollTop: $('#screen-contacts').position().top }, 600)
          window.ContactFlag=false
            }

    }

Then I create a variable flag
on the button and put a handler

window.ContactFlag=false;
      $(document).on('click','.nav-link-contacts',function(event){
        event.preventDefault() 
        window.ContactFlag=true
        $.fn.fullpage.moveTo($(this).data('link'), 0)
        return false
        })
      $(document).on('click',".footer-link",function(eventObject) {
        $("#products-screens .fp-scrollable").animate({ scrollTop: $('#screen-contacts').position().top }, 600);
            event.preventDefault() 
           $("#products-screens .fp-scrollable").animate({ scrollTop: $('#screen-contacts').position().top }, 600);
      return false;
      })