These can be ignored (the error message has been removed entirely from later 3.x builds). This is a process that was supposed to determine how "busy" a Unity server was and assign it a value from 1 to 100. This value was then going to be used to determine the priority of reports, if another TTS session could spin up etc...
It was a good idea but never really worked out. The process still spins as part of the guy that logs stuff for the windows perf monitor store (which is mostly relegated to debug builds in the lab). Every once in a while it decides it's not happy with a value it calculates and kicks this message out.
It doesn't affect anything and isn't anything to worry about.
Are you getting this error “Installer User Interface Mode Not Supported. The installer cannot run in this UI mode. To specify the interface mode, use the -i command-line option, followed by the UI mode identifier. The value UI mode identifiers...
The below trick might come handy when you have to add a new node to a cluster but you don't have or is unsure of the security password for the publisher. This procedure has been around for ages.
1) Login into the CLI of the Publisher.