I am having the same problem. I select the packages in the marketplace that I install then hit install and it jumps to the install page saying "No apps have been selected for installation."

My repo list is shown below.

I did run:

yum-config-manager --enable clearos-updates

Updating through the GUI did work. Also, I can install apps successfully using yum.

I have reinstalled several times and have the same problem.

The computer that I am using to connect to the server is running WIndows 10. I tried using the latest Firefox and also the Edge browser.

Any idea how to fix?

yum repolist
Loaded plugins: clearcenter-marketplace, fastestmirror
ClearCenter Marketplace: fetching repositories...
Loading mirror speeds from cached hostfile
* clearos: mirror1-frankfurt.clearos.com
* clearos-centos: download2.clearsdn.com
* clearos-centos-updates: download2.clearsdn.com
* clearos-contribs: mirror1-frankfurt.clearos.com
* clearos-epel: download2.clearsdn.com
* clearos-fast-updates: download2.clearsdn.com
* clearos-infra: mirror1-frankfurt.clearos.com
* clearos-updates: mirror1-frankfurt.clearos.com
* private-clearcenter-dyndns: download3.clearsdn.com:80
* private-clearcenter-plex: download1.clearsdn.com:80
repo id repo name status
clearos/7 ClearOS 7 - x86_64 - OS 718
clearos-centos/7/x86_64 CentOS-7 - Base 8,917+90
clearos-centos-updates/7/x86_64 CentOS-7 - Updates 1,525+255
clearos-contribs/7 ClearOS 7 - x86_64 - Contribs 72
clearos-epel/7/x86_64 EPEL 7 - x86_64 10,100+33
clearos-fast-updates/7/x86_64 ClearOS 7 - x86_64 - Fast Updates 38
clearos-infra/7 ClearOS 7 - x86_64 - Infrastructure 16
clearos-updates/7 ClearOS 7 - x86_64 - Updates 391
private-clearcenter-dyndns ClearCenter Dynamic DNS 2
private-clearcenter-plex ClearCenter Plex Media Server 3
repolist: 21,782