My laptop isn't charging?

So last night I had my laptop charging this morning i needed to do some stuff so i took it off the charger well when i went to plug it back in the charger didn't fit I think i might have lost a piece but i have no clue what? Any suggestions? It's a lenovo g560

Seems like the port pin in which the connector plugs in the laptop broke off in the connector the dc jack needs to be replace { the port where the connector plugs into laptop}