Slider don't work jQuery error

Uncaught TypeError: $menu.on is not a function
at applyHandlers (plugins.js?oumrjj:19)
at HTMLUListElement. (plugins.js?oumrjj:24)
at Function.each (jquery.js?v=1.4.4:34)
at $.fn.init.each (jquery.js?v=1.4.4:27)
at $.fn.init.init (plugins.js?oumrjj:24)
at $.fn.init.$.fn.superfish (plugins.js?oumrjj:25)
at HTMLDocument. (global.js:7)
at $.fn.init.ready (jquery.js?v=1.4.4:27)
at HTMLDocument. (global.js:3)
at Function.ready (jquery.js?v=1.4.4:30)

Slider not loading.