lg wm2077 cw?

my washer would leave water in the tub not run it would stay just running till the timer ran out.the water would not drain .service man came by and drain it from the front lower plug.it started working the hose running from the tub going to the drain trap had two hoses and water was leaking onto the floor.i used silcone to cover the to hose and work.but now the draincap is leaking from the drain trapdoes it have gasket or just need tobe replaced help would appriated