Sysadmin yum update error

I have this error:

Code:

Error: Package: glibc-2.17-196.el7.i686 (@base)
           Requires: glibc-common = 2.17-196.el7
           Removing: glibc-common-2.17-196.el7.x86_64 (@base)
               glibc-common = 2.17-196.el7
           Updated By: glibc-common-2.17-196.el7_4.2.x86_64 (updates)
               glibc-common = 2.17-196.el7_4.2
 You could try using --skip-broken to work around the problem
 You could try running: rpm -Va --nofiles --nodigest

please help

 

of course I chosed skip broken, but why is that?

shall I install glibc? what code?

 

it worked, However, this is not due to the os first has 32 before centmin, as it is an old setup like a few months ago, and this is the first time to notice that, any other possibilities?