Routes Not Working On Live Host ?!!!!!

If CI is only used as backend, you should probably set a subdomain like api.example.com and have your backend (CI) and frontend (Angular) separated with their own domain. The public folder is your document root, it should not be inside the document root with all other files. And don't tell me "look dude" like I'm stupid. You didn't even mention you had 2 separated apps for the front and back.

you ware rright  man it needs subdomain  api.example.com 
vi4 upload in subdomain   then
 
upload  angular app exmple.com   

now every thing okay 

Enlightenment  Is  Freedom