Trouble with 32 year old daughter

Here’s the problem. My gt\rown daughter got arrested back in september , for warrant’s for a dui from a few years back. I did’,nt even know it happened until she got arrested, hence I had to call her father in another state to bail her out. now she has this fine , and has to attend classes. I alway’s had my husband take her and bring her home, well last week she came home from her class and call me up and said that she had I fine to pay in 10 day;s or she was going to jail and it was my fault, I said what are you talking about, she said because a few years ago , when she had threatened to slice my throat open, I pressed charges on her , and they were fake and she did’nt pay the fine the judge gave her because they were fake, I did’nt press the chatges on her the police did, my older sister is the one that called the police when it happened, In court she pleaded guilty to the judge , he gave her a fine and told her she had to pay the fine or be put in jail. She was told to pay so much a month. The judge told me to go get a pfa on her, and I did , it was for 18 months. Well now she is trying to say she never paid the fine , because of it a was a lie I told; It was’nt a lie , she really did threaten me, I don’t know if she had a knife in her hand at the time, because I was behind my locked bedroom door. My 2 small grandchildren were present at the time, I was afraid of my daughter that day because she was and I still believe is doing a lot o drugs and she drinks a bottle of booze almost daily. At that time the children and yout did get involve and she tesred positive fir du=rygs, and I got custody of the children for 1 month and then the state gave them back to her. Now because iof this recent stuff she is pulling she will not let me see my grandchildren, I only have a few years to live , because I have a disease, and is telling everyone I kied , and I don’t care about her , because I will not pay her fines. She has’nt called me mom in years , always by my first name , but yet expects me to do everything for her, I admit , I did spoil her while she was groeing up, because I was a single parent, and yes I spoil my grandchilxdren. I love my daughter and I do not deserve yhe direspect I get from her, I feel sorry for my grandchildren, and they know I love them and it’s killing me , not being able to have any contact with them because of her say so. I don’t know if I can go to that court and get a copy of her guilty plea for threatening my life, I just don’t know what I can do. I know she is in the wrong. But what do I do. I have no other children? Does anyone have any good advice??? P:EASE!!!