how can i fix my socket in electric fire ?

hi,the bulb blew in my electric pebble fire and glass from the bulb came away and just left the metal bit in the socket. i managed to get that out, but now it is not working . my fire has two bulbs for the glow the one which didnt blow is working and the side that blew isnt working now . can it be fixed . if so how easy is it to do ..