The vector drive is full of common, industrial parts (at least in the USA). The only piece in there that could fail that is not commonly available is the logic board.
There is a DC power supply inside that is known to fail. The capacitors could short. The contactor could go bad. The main IGBTs or the braking IGBT could go bad. The rectifier bridge could fail short or open. All of these components have screw terminals or plugs and are easily replaceable. The problem is being comfortable enough with electronics to diagnose each of them and determine which might be bad.
You might be able to get somebody in Argentina to fix it unless you're truly comfortable taking it apart and trying to repair it.
What exactly is happening? What error numbers?