Add sub menu & child menus not working proper

Hi,

Please look website # https://www.webhostingpeople.net

1) In Domain, Hosting, Reseller Hosting If we add more sub menus , that`s working fine but when we add child menu in sub menu means Domain >Menu1>>Menu1.1>>Menu1.2 , then Menu1.1 and Menu1.2 location is disturb not working proper. I think Some CSS code problem.

2) VPS HOSTING ,PROMOS,PAYMENT METHOD has problem with sub menu and their child menus

Basically I want to add more sub menu and their child menus in existing menus { in Domain,Hosting,Reseller,VPS Hosting,Promos and Payment Method.

Please guide me how can We do it correct ?