Common eBike problems and solutions

Hey everyone!

Just joined the forum and super excited to connect with fellow eBike riders. I've been riding my Aventon Pace 500.2 for about a year now, mostly for commuting and some weekend trail rides (around 20-30 miles each trip). I'm curious what common issues you've all run into with your eBikes, especially after a few months or a year of regular use? Any specific problems with batteries, motors, or controllers, and what solutions did you find? Looking forward to hearing your experiences!