Hi Arthur,
Please see this link, https://mselectronics.ca/ebay-listings/
Did some more testing and disabled the WP Super Cache plugin and Jetpack plugin, and that seemed to have made it work now. I couldn’t replicate the issue after enabling them, but I have kept them disabled.
Very weird, as on my local host it was an entirely different setup without any plugins and that works now as well.
If you want to have a quick look at the website anyway to ensure it works on your end or any other issues, I greatly appreciate it.
Thank you so much for looking into this so quickly,
Andrew