Help remounting Backspace key on Hunstman keyboard

Hello, Recently I was putting on O rings on my keyboard (Huntsman) and when i removed the backspace key I couldn't put it back on like it was before. Here's some photos https://imgur.com/a/ZM6n3lw, https://imgur.com/a/EoMpRA1 (sorry for the little hair that got in the way xD)
I tried everything, when i put it all the way down it gets stuck and won't come up, if i push is all the way down and then I push it up it does a click sound but still gets stuck. Maybe the problem is those 2 little bars in the inside that don't connect properly (even if i tried pushing it down and pushing it back up and makes a click sound)? I hope I didn't break anything :/

Thanks in advance to everybody who can help me!