Hello! A few months back I started to get a screen pop up on startup called windows.plst (see image attached). I have searched online to see how to get rid of this but have come up empty. I was on Sierra previously and upgraded but that has not taken care of this problem. Does anyone know what this might be and how to fix it? Specs: MacBook Pro Retina 15 Inch Early 2013 MAC OS Mojave 10.14.5 Processor 2.8GHz Intel Core i7 Memory 16GB RAM 160 MHz DDR3 Graphics Intel HD Graphics 4000 1536 MB Thanks!