OS X Can't repair the disk "MyLove HD" Whenever I start up the Macintosh , I get the above mentioned error. I would like to know the cause of it and solve the issue.

I am using El-Capitan
Where do you see this error? In the logs or does it show a dialog once you're logged in?

Either way, I'd probably start with booting from the recovery partition and running Disk Utility. If it still can't repair it then you might need to try another disk repair utility or just backup and erase to see if you can get rid of these errors.