CSR is required to purchase a private SSL Certificate, and it's easy to generate from cPanel.
1. Login to cPanel
2. Go to SSL/TLS
3. Click the link below Certificate Signing Requests (CSR)
4. fill in the information required and click Generate
5. Copy the output and use it in your SSL Certificate order.
efuzone support team is always available to help, you can create a ticket and let us do this work for you.