After an SSL installation on your web hosting account you may not be able to open your site.

This issue is caused by the SSL installation which requires a DNS change of your domain's A record. Right after the SSL installation you are still resolving your domain using the old DNS settings.

You should allow a few hours for the DNS change to propagate and take effect. After that you will be able to access your site without any problems.

It is also a good idea in such cases to clear up your browser's cache  and your local DNS cache.

If you are having problems with your SSL certificate, ask your host for assistance. SiteGround offers the best SSL hosting and any SSL issues are resolved quickly and efficiently.