Crown lost 6-3 to Bentick Arms after extra time in the Lynn Sunday League Cup semi-finals.
They took the lead with a brilliant header from Ricky Gunns and other goals came from Jack Mockford and an own goal.
Northen beat Fang FC 3-1 in their West Norfolk League game on Sunday.
Aaron Yeomans scored twice and Craig Hotson added a third goal. Martin Pettit did well in goal and Alan Setchell was outstanding in defence.