Exactly. My system, thanks to updates has a later version of app-certificate-manager-core than what version of app-certificate-manager Flexshare is trying to install.

In fact when I try to just install app-certificate-manager I see:

# yum install app-certificate-manager
Loaded plugins: clearcenter-marketplace, fastestmirror
ClearCenter Marketplace: fetching repositories...
Loading mirror speeds from cached hostfile
* clearos: mirror1-newyork.clearos.com
* clearos-centos-verified: mirror1-newyork.clearos.com
* clearos-contribs: mirror1-newyork.clearos.com
* clearos-epel-verified: mirror1-newyork.clearos.com
* clearos-fast-updates: download1.clearsdn.com
* clearos-infra: mirror1-newyork.clearos.com
* clearos-verified: mirror1-newyork.clearos.com
* private-clearcenter-dyndns: download1.clearsdn.com:80
* private-clearcenter-verified-updates: download4.clearsdn.com:80
Resolving Dependencies
--> Running transaction check
---> Package app-certificate-manager.noarch 1:2.3.22-1.v7 will be installed
--> Processing Dependency: app-certificate-manager-core = 1:2.3.22-1.v7 for package: 1:app-certificate-manager-2.3.22-1.v7.noarch
--> Finished Dependency Resolution
Error: Package: 1:app-certificate-manager-2.3.22-1.v7.noarch (clearos-verified)
Requires: app-certificate-manager-core = 1:2.3.22-1.v7
Installed: 1:app-certificate-manager-core-2.3.27-1.v7.noarch (@clearos-updates)
app-certificate-manager-core = 1:2.3.27-1.v7
Available: 1:app-certificate-manager-core-2.3.3-1.v7.noarch (clearos)
app-certificate-manager-core = 1:2.3.3-1.v7
Available: 1:app-certificate-manager-core-2.3.22-1.v7.noarch (clearos-verified)
app-certificate-manager-core = 1:2.3.22-1.v7
You could try using --skip-broken to work around the problem
You could try running: rpm -Va --nofiles --nodigest

So it looks app-certificate-manager-core was updated in the repo, but app-certificate-manager was not.

Someone needs to rev app-certificate-manager and move it to the repo.