Hi,
Yes, I understand this. But the terminal still relies on the settings of your Joomla configuration.
For example, it uses the settings of the "database" section of your Joomla configuration to access the database to be able to index the data, even if you trigger the indexing from the terminal.
Similarly, it will display a short version of the error message or the full error message based on how the "debug" setting is configured in the Joomla configuration.
So, again, please try again after activating the "debug" setting of the joomla configuration in order to get the full error message.
That should allow us to tell you what to do.