The Limited Plaid Mini skirt size 14 95% Wool 5% Polyester see notes Y2K

The Limited Plaid Mini skirt size 14 95% Wool 5% Polyester Button fell off. I can send button with skirt. I am not crafty so I do not know how to sew it back on. The inside flap of the skirt lifts up. Not sure if that's how it's supposed to be. I just fold it back down. Looks like Junior sizing. Gently used Good condition See pictures for measurements