I have a 2011 Mitsubishi Sportback ES Lancer.

So, I accidentally jacked my floor up instead of the car up ! I jacked here: https://i.imgur.com/PSp3RYh.jpg. This is what the backside looks like: https://i.imgur.com/im9GncP.jpg.

I took a sledgehammer, and got my floor down and straight again... but, a little concerned.

I was concerned about two things that maybe you guys can help me with. What is the round thing that looks like this: (+)? I thought that was a jacking point... apparently not .

Second thing is, is there any important lines or electronics that run under the driver side floor?

 

That round thing is a drain plug.
You are OK. No wiring there.
Go ahead and paint a bright colored "X" on the correct spot so you won't miss it next time. :}