warrant without bail?? help plz

I have received a 'warrant without bail outstanding for your arrest' for unpaid fines, I know this is my fault and it should have been sorted sooner, I have rang the court and they have told me I need to go to court, I told them I will go Monday afternoon, I want to pay this fine which is for £1,876, but I can only afford £40 a month as I'm registered disabled and receive disability allowance, my partner works but his wage barely covers the bills so 40 is really all I can afford, my worry is that I may be sent to prison, I have a 5 yr old daughter and I'm due to have surgery on my spine this year, can anyone tell me if there's a possibility I will be sentenced and has anyone got any advice plz

warrant without bail?? help plz