Enter Key doesn’t work when using a Screen Reader

Hello,

Help – We’re trying to make the site WCAG compliant!.

I added the PE Accordion inside the Popup. I works great when navigating the accordion using a keybaord. However, when I turn on the Screen Reader (Jaws and nVDA). The Enter Key no longer triggers when navigating. I cannot click the open/close tab, I cannot click the links and also cannot click the close button using the [Enter] key wnen JAWS or NVDA are on.

Here’s an example https://mdchilddev.wpengine.com/popup-sample/ – Please “Click Popup here” and navigate using screen reader.
For the Popup- I use Popup maker plugin.

The page I need help with: [log in to see the link]