The Vanuatu club champions showed pace from the outset as they raced into the Tefana box from kick-off.
However it was Tefana making more threatening advances into the opposition half testing keeper Serge Daniel early on.
Twenty minutes in, almost against the run of play, a low shot at goal from Tony Kaltack looked a relatively easy save for goalkeeper Mikael Roche, but somehow he let it slip under his fingers giving Erakor first points.