Question about lending money

My first husband has taken amount 2 lakhs from non money lender license holder.and he ran away he already have so many cases on his name.but the 2 laks rupees he have taken on my name that too amount was given in my shop.i paid 5%intrest it means I paid 70000 already as a interest rate.but after that he ran away.i had divorce with him,I got married to my old friend and I have 10 months son also.shop closed I had big loss because of him,but the amount 2 lakh which he has taken on my name that lady was good with me so I told her that I will pay the amount because I have taken guarantee.and on the April month I have given in written in 100 rs stamp paper that I will pay the amount on September month because I was suppose to get my pf but I was not able to get that amount on time.its will take more time because my child is only 10 months so not able to manage things so I am afraid what action she will take and what can I do in this situation checks were given but invalid checks that was on sisters name my signature and I think account is also closed so what should I do exactly now.