Car won't start on 2003 Suzuki Aerio

Car will not start after a new starter was put on a week ago. The dashboard lights flickered off and on for a while then it wouldn't start. Now when trying to start it it only clicks.

Asked by for the 2003 Suzuki Aerio
Are you sure the battery is good and make sure the battery cables are clean and tight, because when it only clicks its usually a dead battery