How can I get my facebook tracking pixel to work on my ebay listing?

Question

I have created a facebook tracking pixel and have inserted the following code into the html on my ebay listing page:

<noscript><img height="1" width="1" style="display:none"
src="https://www.facebook.com/tr?id=XXXXXXXXXXXXXXX3&ev=PageView&noscript=1"
/></noscript>

I have verified that the pixel is there via the facebook pixel helper chrome extension. However, when I load the page, the view is not registered on the facebook events manager platform and the chrome extension shows the following error:

We detected event code but the pixel has not activated for this event, so no information was sent to Facebook. This could be due to an error in the code, but could also occur if the pixel fires on a dynamic event such as a button click.

I have not configured any specific events in the "Web event configurations" section on the facebook platform because the domain is owned by someone else and according to the documentation (https://www.facebook.com/business/help/422408905612648?id=1877298665783613):

If you can't edit events because another business owns the domain, contact the domain owner to share the domain with full control.

Based on the examples I have seen (https://declutter69.com/ebay/how-to-use-the-facebook-pixel-on-ebay-listings/), I didn't think this step was necessary, and I'm not sure how to go about it. I don't know what I'm missing and what has to be done to start seeing these hits on the facebook platform.

Any help would be much appreciated.