The user is able to communicate with the server but it is unable to locate the requested file or resource. This error occurs when :
- a visitor mistypes a URL
- the file exist in the wrong location on the server, either moved or deleted.
- server configuration has the incorrect document root location.
- the user doesn’t have the privileges to access to the directory.
- the resource is not being accessed a symbolic link.
Firstly, check the DNS connectivity of the domain using the below command.
- dig domain.com
Then, check the cPanel URL and ensures that the server hostname, domain name, and the cPanel port are given correct.