System Preferences stopped unexpectedly

This is my first mac so I'm kind of freaking out even though it doesn't seem like a big issue. I was changing a few of my system preferences when the waiting color wheel came up. It spun a few times and then my system preferences closed and came up with a box saying that my system preferences had stop unexpectedly and asked if I wanted to send a report. Is this a known issue or is there something wrong with my Mac?