For me the SSL is in use, but some links on your website are still on the HTTP one, causing a Mixed Content error. Change the URL from http to https in the WordPress (or whatever CMS/forum software you are using) settings and save the changes.
Once the certificate has been installed, you can verify it has been installed correctly using an SSL checker. Using an SSL checker is the best way to find out whether the certificate installation was successful.
By now, you can also try to verify it’s installed correctly by visiting https:// . If you see a green lock in your browser’s address bar, that means the certificate has been installed correctly.
If you do not see a green lock, here are some things to check:
If you see a red warning page, your browser may not have checked the new certificate. Some browsers (notably Google Chrome) remember the certificates of websites for some time, so it may take a few hours for your browser to see the new certificate.
If you are redirected from the https:// page to http:// , your website is forcing people to the non-https version of your site. Most of the time, the script has a setting for the “website URL” or something like that. If you change the website URL to https://, you should be able to see the website over https.
If your website is using the https:// URL but the address bar is still white, it means that some of the stylesheets, scripts or images on the page are still using http:// URLs. You need to find those URLs and make sure they all use https as well.