Arduino's Green led not comming on

Arduino’s Green led not comming on I’ve used the x cave once through easel after putting it all together and worked perfectly a week later went to power up and now noticed the green led s not turning on and not able to connect to easel as well.

cheers Robert but everything is seated properly I even took both boards out and seated together and tried that with the same results

im starting to think i need to order new boards after 5 days of doing circles i still cant proceed forward just dont understand how on day it works and then the next its usless nothing