I am very grateful to colleagues Nick Cooper, Mark and CoolP, by the correct information. Yes, indeed CIVA_INS was not completely installed, but now, after downloading, the CIVA_INS displays appear and work well.
Glad you got it all sorted out and working.

Right now, it is 03:30 AM (Rio de Janeiro time) (06:30 AM GMT) and I finished a B-707 turbulent flight (by my guilty, of course) from Johannesburg (FAJS) to Cape Town (FACT) with just two engines running (the two inboard ones were flame out) and I didn't get to restart them again during the flight.
Sounds like you were not watching the fuel gauges closely enough! I've been there and done that before. ;D

Well, the flight should take 2 hours but it took 3.5 hours. Fortunatelly it was a beautiful landing, despite the distressed passengers...LOL ;D
You should never fly when tired, that leads to bad things happening. Fortunately you landed safely. I have been there and done that too. It's part of the learning curve. But in your case, you HAD to finish the flight. You couldn't stop. I totally understand your thinking!

Mark