need to place some html code on a page

Hi,

I have support access on for aficreditsolutions.com.

I need to place the following code on the knowledgebase page but cannot find it in the list of pages. It uses a knowledgebase plugin.

Here is the page:

https://aficreditsolutions.com/knowledgebase/

Here is the code:

<script src="https://videopal.me/js/vp_player.min.js?v=1.1.29&quot; data-cfasync="false"></script>

<script>

var vpPlayer = new VpPlayer({

embedId: "4rWh477sFD9p"

});</script>