AirPods can not be found by my iPhone

My AirPods don't flash white, while I try to pair them to my iPhone by pressing and holding the setup button. The light is just green and after a few seconds it turns off. I had problems with both of the AirPods a few days ago and they started to be disconnected and I tried to fix the problem by reseting the device.

I would appreciate if you could help me.

Thanks,