Me again!
My game is out with playtesters now, and one of them got the same crash as last time. Here is an image of their bug: https://imgur.com/Gzvg4TG
Last patch should have fixed that. Open up the plugin in a text editor (notepad will do) and search for the onMouseEnter function. It should look something like the below.
My version looks the same as your screenshot (has all the same code at line 270), but this crash still happened on this version somehow. My mistake, it was different, I just hadn't noticed the "this.battler &&". Thanks!
