Both with and without www.
Does it work on another Windows PC/laptop,Mac,Chromebook,tablet,phone when you try it at the same location? Then it's something in your PC indeed.
Did you try to flush the DNS? https://documentation.cpanel.net/display/CKB/How+To+Clear+Your+DNS+Cache tells how to do it in Windows or Mac OS.
everytime I click on the link to my Website or type in address direct I keep getting this message, the person who did the site for me said that it was happening at my end, is this correct and please how do I fix it?..
DNS Lookup for "thegroveonwillow.com.au" failed. System.Net.Sockets.SocketException The requested name is valid, but no data of the requested type was found....
the actual address is www.thegroveonwillow.com.au
please help me.