Laptop On/Off 'button' no longer works

Hello everyone,

I was struggling with my laptop’s on/off button, so i decided to open the back of the laptop and take a look. Once i opened it, i saw that the on/off button attached to the circuit has been disconnected [it fell off once i opened the back]. I’ve been turning my laptop on/off by pressing a metal object to where the button used to be! I looked around and couldn’t really find out how I could potentially fix this!

Any help? My device is a Toshiba Sateline P55W - C5208X.

(See pictures; hoping it would help!)