I am facing a typical issue.
I have just installed the vpsheredb
I am also running icinga-vspheredb.service - Icinga vSphereDB Daemon
But when I click on Virtualization -> Servers -> vCenter Server -> Add
The right hand window -> Create a new VCenter/ESXi -Connection is completely blank
My Modules (/usr/share/icingaweb2/modules)directory permission looks OK
Not sure what am I missing