The problem is that the A18 quest was reworked, so the savegames can give problems because the previous data does not match the new ones, try a new game and check if it gives the same error
BTW, thr error regarding healing 18 at the infirmary when you turn her around existed as far back as 3.0(noticed when her 5th scene became available and she's in her birthday suit) The 3 battle injury work against her so PLEASE, PLEASE look into it.
