I have a TMS appliance. Its version is 13.0. And I want to upgrade it to the version 13.1.2. First of all, I want to learn if it is possible or not. If it possible, how can I do that? I tried to upgrade by running TMS 13.1.2 exe, and I had an error saying "It is harmful operation" and it didn't allow me to install it. What do you think is the problem?
Look at the HTTP exception by clicking it. Does it say that it cannot find any phonebooks? Try creating some users and enable access to the phonebooks in phonebook management under access control. Do you still see the error after a full synchronization?