I’m so sorry this has happened to you. You sound as if you’re on your own? Husband/ partner?
Could you possibly go back to how it all started, and try to start again with your daughter?
I don’t understand the stance of the other three. Perhaps you could try to talk to each of them individually, and work from there. Your other children say they love you and you are being silly. Therefore, maybe they could suggest a way forward.
Are they all busy with lives/ families? Do you have grandchildren?
We were estranged from one daughter for about 18 months. Like you, we have four children. In our case, the other three acknowledged her wrongdoing, and I think it was because of this, we were able to reunite. I also had my husband’s support.
As suggested, there is an estrangement forum on here. I’m sure you’d get loads of help, and also the chance to meet up, and meet new people.
Take care.