You can follow below steps for that:
- Login to Plesk.
- Now you have to issue certificate to particular domain name specified in Plesk, for that you can check this:
- Click on “Tools & Settings”.
- Here select “SSL/TLS Certificates” >> Let’s Encrypt.
- Certificate to secure Plesk panel :
- First click on “Tools & Settings” option and then “SSL/TLS Certificates”.
- After that navigate to “Certificate for securing Plesk”.