This article will take you through the steps of fixing "Warning: SSL/TLS support is disabled for Example.com.au" when trying to issue a Free Let's Encrypt Certificate via your Plesk Panel. You may also experience this warning when trying to upload an SSL certificate via the Plesk Panel.
- From Websites & Domains click "Hosting Settings"
- Scroll down to Security and find "SSL/TLS Support" and ensure the box to the left is ticked.
- Scroll down and click OK
- You can now issue a Free Let's Encrypt Certificate!