I wouldn't be looking for errors per se. You just have to work out the best structure given your rehab and limit of 3 days. Usually extra upper body work is needed once you progress past the NLP. It's easiest to do this in a 4 day, but another option is to add it in day 2. You might be able to remove the Day 2 squat entirely which will give quite a bit of room for extra upper body work.