Hey. I have such a problem with displaying a certificate. When I click the "Show Certificate" button, the screen darkens, but the certificate does not appear. To view the certificate, you need to right-click "Show Certificate" and select Open in a new tab.
The certificate is created at the time it is awarded. So, if the certificate is not created in the first place, this can happen.
I need to check your site for this, as this is not a common issue. Please share site link and WP Admin detials here. We will check this asap.
@Zoha,
moving the topic in right subforum