This is not a hard fix at all. Just follow these easy steps and your website will be back up in no-time.
- Go to your WHM Control Panel
- On the left side, find Service Configuration.
- Click Service Manager.
- Find the checkboxes (there should be two) for named or BIND.
- Select the checkboxes, and then scroll to the bottom of the page and hit save.
- Scroll to the bottom of the left hand menu and find the Restart Services header.
- Select DNS Server (BIND) and then hit YES to restart BIND.
- You are done!