All lights went offline now only one of my 3 bulbs can connect at all

While i was home all of my yeelights colour 1s bulbs went off line while I was attempting to reconnect one of the another one came back online and is now currently functioning correctly however the other two bulbs will not connect at all. they are both connected to the wifi router, I have reset bulbs, uninstalled the yeelight app and reinstalled it no luck.

Please help I need these lights to work in my home office.