TTS-1 is built in to Sonar and I don't believe it can be installed directly on it's own. I could be wrong but I just now had to re install Home Studio after uninstalling Professional to get TTS-1 back. The uninstall of Pro corrupted the shared folder.
So for sure if you uninstall your version ?? of Sonar and re install it it should fix the issue.
Didn't take much for me as I think CCC stashes the files on your machine and doesn't re-download.
Took over a hour the first time I installed and only 5 minutes to uninstall and re install HS.