[CentOS] Problem with download from local mirror

Hello Dear

I have lunched a local mirror but, I have a problem when I want to download package from it , I get this error when I run "yum update"

failure: repodata/repomd.xml from base: [Errno 256] No more mirrors to try. http://centos.local/7/os/i386/repodata/repomd.xml: [Errno 14] HTTP Error 4

04 - Not Found I do not Find out what is problem?

I haved installed centos 7 as Client and want to download package from centos.local server

and there is one another , I checked on another PC and get this error

http://centos.local/repodata/repomd.xml: [Errno 14] HTTP Error 404 - Not Found Trying other mirror.

I saw other mirror but they have not this directory too

Tahnk you so much for consideration Best Regards