HTML loading below the footer

Hi there,
Using Elementor (maybe their issue).
Loading Amazon affiliate ad code in to Elementor HTML widget.
The ad does not load in the Elementor widget or on website page.
It appears below the page footer. Outside the website.
Yes I have disabled plugins.
Yes I have contacted Amazon who assure me it is not their code.
The ad is currently not loaded on my website.
Amazon code below the line.
How can I get the Amazon code into my website?
Thanks for your help.
---------------------------------------------------
<script type="text/javascript">amzn_assoc_ad_type ="responsive_search_widget"; amzn_assoc_tracking_id ="nhi09-21"; amzn_assoc_marketplace ="amazon"; amzn_assoc_region ="GB"; amzn_assoc_placement =""; amzn_assoc_search_type = "search_widget";amzn_assoc_width ="250"; amzn_assoc_height ="600"; amzn_assoc_default_search_category =""; amzn_assoc_default_search_key ="";amzn_assoc_theme ="light"; amzn_assoc_bg_color ="FFFFFF"; </script><script src="//z-eu.amazon-adsystem.com/widgets/q?ServiceVersion=20070822&Operation=GetScript&ID=OneJS&WS=1&Marketplace=GB"></script>