How can I fix my washer dryer Hotpoint aquarius 1200 WD62?

Washer dryer Hotpoint aquarius 1200 WD62 front load. How can I fix the new door hinge on. When I unscrewed the broken hinge off, the part that the hinge is screwed to has fallen down somewhere. I probably need to take whole front part of the washer dryer off. Can you give me an advice how to do it. Thanks