You will have to hand feed them.
Kitten milk with colostrum and a small amount of double cream , 2-3 times a day. I don't know much more but I'm sure @Preitler and other members can help you more !
Also I'm so sorry about eclipse ! Xx
He's had veggies , he's been eating a few handfuls of hay now , syringe food , he has a herb salad mix and his medication is meloxicam and azithromycin antibiotics. He's also had some water by syringe