Can you check the language settings on the Configuration \ Phone Languages and GUI Languages page in the SA? If they arent showing properly there you can check in the registry under the HKLM\Software\Active Voice\SystemParameters\1.0 key there should be several GUI and TUI language values under there.
If the default TUI languages are ENU and ENU is properly loaded, try adding this key:
HKLM\ SOFTWARE\ Active Voice\ CDE\1.0\RetryDefaultLanguage
The RetryDefaultLanguage should be a DWORD and set it to 1 this will force Unity to retry the phrase using the default fallback language even if the language the user is set to is not loaded.
It could be that your subscribers/handlers somehow or another got set to use a language that is not loaded on the system that would give you this behavior. If you dont have multiple languages loaded, though, this shouldnt be possible via the SA anyway
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.