If your vinyl flooring is coming up, try putting it back in it’s place. Pull the vinyl back where it has come up. Lay a sheet of foil on top of the underside of the vinyl (shiny side down), then run a hot iron over it several times until you feel the glue on the underside of the vinyl tile remelting. Push the vinyl back into place and set a pile of heavy books on it over night to set.
As with any home improvement projects, precede with care and exercise proper safety procedures.