sonicmetalicS197

So for the past fiew weeks ive been hearing this popping noise coming from the left rear of my car.
Its mainly when i hit the gas enough to push you into your seat, the more gas....the harder the car goes back...the loulder it it. If i gas it in reverse its REALLY lould. But i don't generally hear it when i go over bumps. I looked under there today and i saw this, it might be the cause but idk. What do u guys think? And can i bend it back or do i need to get a new arm (if thats what that thingi is)

Left side (problem side) see the bent little tab


Closer






The other side (right) the tab isn't bent