When installing an SSL certificate to your domain through the Let’s Encrypt plugin in cPanel, sometimes you’ll see an error where Let’s Encrypt cannot locate the CAA record. This happens with ‘reclaim.hosting’ subdomains often.
To get around this error, you’ll need to add a CAA record for the domain you’re using. First, you’ll start in cPanel, then click DNS Zone Editor
Then click Manage next to the domain you want to add the CAA record for.
Click the drop down to select the CAA Record option.
Fill in the following information to allow the use of Let's Encrypt certificates:
Flag: 0
Tag: Issue
Value: letsencrypt.org
Once you’re ready click Add Record.
Once that’s done you can install an SSL certificate as normal. You can follow along with this guide: Installing Free SSL Certificates.