Protected multilib versions: bash

[Pseudorandom]

I'm brand new and trying to sort out what is happening with our server and I am currently getting the error

Error: Multilib version problems found. This often means that the root
cause is something else and multilib version checking is just
pointing out that there is a problem. Eg.:

1. You have an upgrade for bash which is missing some
dependency that another package requires. Yum is trying to
solve this by installing an older version of bash of the
different architecture. If you exclude the bad architecture
yum will tell you what the root cause is (which package
requires what). You can try redoing the upgrade with
--exclude bash.otherarch ... this should give you an error
message showing the root cause of the problem.

2. You have multiple architectures of bash installed, but
yum can only see an upgrade for one of those arcitectures.
If you don't want/need both architectures anymore then you
can remove the one with the missing update and everything
will work.

3. You have duplicate versions of bash installed already.
You can use "yum check" to get yum show these errors.

...you can also use --setopt=protected_multilib=false to remove
this checking, however this is almost never the correct thing to
do as something else is very likely to go wrong (often causing
much more problems).

Protected multilib versions: bash-4.1.2-29.el6.x86_64 != bash-4.1.2-15.el6_5.2.i686

It says right there that I have two versions of bash. I have no idea what bash is, and all I have been able to figure out is that those two versions are 64 and 32 bit respectively. I know my server is 64 bit, so how would I go about disabling, removing, or updating the other version safely?

[Whoever]

1. Exactly what are you doing when you get this error?
2. Somethimes these errors can be resolved by simply running "yum update" to update all packages on the system.

[TrevorH]

Post the output from rpm -q bash