grub gives this: error: no server specified

it pops that message when i boot. it just shows and when i press any key grub returns to boot menu and, well there nothing happens after that it just pops that and everythings works without problem. that thing started to show when i followed this link to change keyboard layout of grub: https://askubuntu.com/questions/7512...eyboard-layout

why is that? is it important or i should ignore it? i am in a dilemma