Jessica mistakenly says the broken rib is poking her liver, which is on the right side, not her injured left, clearly demonstrating her lack of medical training. This is not a goof, however, as it's just the type of sarcastic, off-handed comment Jessica regularly makes and it wasn't intended as medical fact.
When the morgue tech texts Jessica, the number shows up as 'Unknown' at the top of the screen - but mis-spelled as 'Unkown' on the message itself. Yet later, when more messages arrive, it appears correctly spelled on the same message.