I'd also start by putting the kits in a nest box and putting the box in the same spot that momma had them. If she doesn't feed them by tonight, you can try picking her up, placing her in the box, on top of the babies and holding her in place for 5-8 minutes. Hold her head (I put my hand over her head and my fingers around and between her ears) to keep her from turning around and hurting the babies. talk to her and pet her. Keep her calm and relaxed.
I suspect that the two the were outside thenest latched onto her when she jumped in, she panicked (Holy COW! What are those squirmy things in there and where did they come from???!) and jumpedaway and they fell off. Without the warmth of it's siblings,babies can chill pretty fast and die. I'm very sure it nothing to do with you touching them. Do not blame yourself.
Being as this is her second try at motherhood, (and she didn't do very well the first time), have patience and go slow with her. She may not have good maternal instincts. Some can learn, some never make good mothers.
When you put her on top of them, if it looks like the babies are nursing, let them feed for 6-8 minutes. Their little bellies should look plump and round. If it doesn't work within the first 10 minutes, don't stress her. Take her off of them and wait 10-15 minutes. Then try again. Sometimes it takes a few tries to get herto let her milk down.
MOST of the time, once she nurses them 3-4 times, she will start to feel relief from the pressure of the milk and will do it willingly. But until you see the babies getting fed on their own, you will have to hold her over them twice a day, early morning and late evening. I also will reward the doe with a treat, fresh parsley, dandelion greensor carrot tops... after she nurses the litter. If she is easily distracted and will sit on the babies without you holding her, give them to her while she is nursing. Anything to relax her.
Good luck with the babies. If she doesn't feed them by tomorrow evening, you will have to try and bottle feed them, but that is a last resort... it's very difficult to raise a whole litter on the bottle.