I received this error too when trying to install VSC 5.0 on 5.0 vCenter. VSC requires vCenter 5.5. I uninstalled VSC 5.0 and installed 4.2.1 and it installed and displayed the registration page.
During Virtual Storage Console for VMware vSphere installation, an error message is displayed indicating that the NetApp vSphere Plugin Framework has not started.
Also, attempts to manually start the Virtual Storage Console service fails. This is caused by the installer failing to generate SSL certificates during installation.