2015 White House Ornament in box with paperwork - lighting feature not working

this christmas ornament is made of brass and was issued as part of the white house ornament collection and this one is dated 2015 and is a decorated christmas tree and measures approx 3 3/4" tall and is in very good condition and used to light but it is not working. Comes in box but with paperwork and lighting feature does not work brrghts18*ep*