没有语病.
这句话等同于:There are so many important things which are waiting for you.
语言点1.of+抽象名词=形容词 of importance = important;of use = useful;
语言点2.定语从句中 which+be 有时可以省略,具体什么时候可以省略,请参阅语法书,这里不赘述.