Help - how to get baby back on breast?

I had been nursing with some supplementation until I hurt my back and had to take medication for a week that meant I couldn’t nurse, but I pumped and dumped to try to keep up supply going, even though it decreased. It’s been a few weeks and my baby now just absolutely refuses to nurse, and even though I’m pumping my supply is almost nothing. I’m heartbroken and want to get her back on the breast but she acts like I’m torturing her when I try. Any advice? Is it a lost cause? I’m not asking about increasing supply, just trying to get her willing to nurse.