alot of DIY's do this to their car especially when the jack
supplied with the car is not used. Dont sweat it. Just use
a 2x4 like what was suggested next time.

I had an older car that had a notch jack, there was a finger of rolled metal that was to be inserted in one place only.
If you didnt use that supplied jack in that one official and strengthened position then everywhere else
was pretty soft and I pushed my floor board up in the drivers and passenger area up noticeably with a hydraulic
floor jack before I learned to use 2x4's and caution.