I remember the game crashing when I tried to shop at the Cafe but using an updated version fixed that.
Earlier ago I mentioned that targeting enemies with the mouse doesn't work which I assume may be a bug specific to Lawmage Academy. I don't have the Olivia_OctoBattle plugin in my main project but I have tested the plugin in a new RPG Maker MV project and the ability to target enemies with the mouse works. However, I noticed Yanfly's In Battle Status plugin (which isn't used in Lawmage Academy) has some issues where where the description isn't positioned correctly due to the OctoBattle's description window overriding the plugin's but changing the Windows Y Parameter can fix this.
Also I noticed that when you choose Escape in the battle, the characters will run and stop in place instead of disappearing off screen likely due to the way actors are positioned.