FB - does not apper the plugin

Hi

I got for my website: https://www.stalmachopole.com.pl/ this code:

Step 1: Include the JavaScript SDK on your page once, ideally right after the opening body tag.

<script async defer crossorigin="anonymous" src="https://connect.facebook.net/pl_PL/sdk.js#xfbml=1&version=v7.0" nonce="PudZxhX4"></script>

Step 2: Place this code wherever you want the plugin to appear on your page.

or

Place this code wherever you want the plugin to appear on your page.

<iframe src="https://www.facebook.com/plugins/page.php?href=https%3A%2F%2Fwww.facebook.com%2Fhaus.gliwice%2F&tabs=timeline&width=336&height=500&small_header=true&adapt_container_width=true&hide_cover=false&show_facepile=false&appId" width="336" height="500" style="border:none;overflow:hidden" scrolling="no" frameborder="0" allowTransparency="true" allow="encrypted-media"></iframe>

I used first one then the second one via Elelemntor -> HTML code
but the FB plugin did not apper

Can I add it somehow via the ELEMENTS ?

Kr
Robert