Okay kiddo, so a "diversion program" is kind of like a special chance for someone who broke a rule or a law to make it right without getting into big trouble. It's like if you accidentally spilled your milk on the floor and your mom let you clean it up yourself instead of getting angry and punishing you.
So let's say a grown-up breaks a law, like they get caught stealing something from a store. Instead of going to jail or getting a big fine, they might be given a chance to do something good instead, like volunteer at a homeless shelter or take classes to learn how to make better choices. This is called a "diversion program" because it diverts, or turns, the person away from punishment and toward something positive. It's kind of like a second chance to do the right thing.