Codeigniter - Indonesia Community

mau tanya dong gan ,,
edirect gak berfungsi dg benar ketika di web hosting
gan ane mau tanya nih kenpa redirect ane setiap add,edit, delete gak berfungsi dg bener ketika di webhosting padahal pas ane coba di localhost gak ada masalah ?
http://_http://www.xxx.com/backend/categ...m/category <- kenapa jadi gini ya gan ?
harusnya __www.xxxx.com/category (www.xxxx.com)