No, there is no error here. Just some damage. Can't speculate on what could have caused it. Could have been anything.
Okay... so a lot of these aren't errors... how can you tell the difference between an error and damage?
There are a couple of ways, but they all involve time, study, and experience. The first thing is to read and study as much as you can about the minting and die making process. A member posted a nice link another thread https://www.usmint.gov/news/inside-the-mint/how-coins-are-made-coin-production-terminology Here’s another on dies https://www.coinnews.net/2013/09/13/how-the-philadelphia-mint-makes-hubs-and-dies-to-produce-coins/ It takes some time, but as you understand the steps in the process, you’ll know which specific steps cause certain errors and if why many “anomalies” cannot be made during the minting process. The reason many experienced members on here can say with certainty that a coin is PMD, is that they know the minting process and know which types of damage cannot occur at the mint. The other thing that helps is to look at a lot of coins, both errors and PMD. It takes time, but there really isn’t a short cut. It’s much easier to do this today than when I was kid starting out in the dark ages before the internet and personal computers . However, you still need to put in the time. Check out the sites that are referenced and book mark the good ones and look at the “is this an error” posts and see if your guess matches up with the experienced members. Hope this helps BTW: I still think you should change your avatar to something like fluffy bunnies. It would go well with your user name <jk>
Welcome @WindyJ. Copper, being one of the softer metals used for coins, is easily moved, bent, distorted and that's what happened to your cent. We call this PMD, or Post Mint Damage, meaning it happened AFTER it left the mint, so not an error. Good luck on future hunts.
