Error when starting balena-etcher

I get the following error when I start balena_etcher…
[root@oc7881751743 balenaEtcher]# ./balena-etcher-electron
./balena-etcher-electron: error while loading shared libraries: libgtk-3.so.0: cannot open shared object file: No such file or directory
[root@oc7881751743 balenaEtcher]#

I’m running Red Hat 6.9 64 bit.

[root@oc7881751743 balenaEtcher]# uname -a
Linux oc7881751743.ibm.com 2.6.32-696.20.1.el6.x86_64 #1 SMP Fri Jan 12 15:07:59 EST 2018 x86_64 x86_64 x86_64 GNU/Linux
[root@oc7881751743 balenaEtcher]#

I installed using sudo “yum install -y balena-etcher-electron” which seemed to install correctly.

The missing shared library seems to be for a 32 bit system, but I’m runnng a 64bit system ?

What am I missing ?

Thanks,