Monitor not detecting GPUs

Hello. So I wanted to plug in my new RTX 2060 and while I was taking out my old RX 580 the pcie latch snapped.. it shouldn’t be a big deal right? So I carried on and I plugged in the 2060. When I first booted I forgot to plug in the power into the GPU so it said something like “PCIE cable not plugged in” so pushed it in and then it went to no signal. So I tried to plug in my RX580 to check bios and now there’s no signal from my RX580. What do I do?