Cannot update yum on Centos 6.4

I update yum by run command: yum update but has error. I am using Centos 6.4
Error
http://yum.theforeman.org/releases/1.3/el6/i386/repodata/repomd.xml: [Errno
14] PYCURL ERROR 22 - "The requested URL returned error: 404 Not Found"
Trying other mirror.
Error: Cannot retrieve repository metadata (repomd.xml) for repository:
foreman. Please verify its path and try again
And I check this url:
http://yum.theforeman.org/releases/1.3/el6/i386/repodata/repomd.xml not
found.
Plz help me.
Thanks

We no longer supply 32bit packages, due to the impact it has on our testing
matrix. Sorry!

Greg

··· On 8 November 2013 06:51, Quang Cường Vũ wrote:

http://yum.theforeman.org/releases/1.3/el6/ i386
/repodata/repomd.xml