credit report balance error 3

https://mycreditreporterrorhelpmag.greyhavendaily.com/posts/how-to-get-credit-report-error-help-without-wasting-time

I noticed a mistake on my credit report showing a balance on an old account that I paid off years ago. It's frustrating because even small errors like this can lower your score. I'm gathering my payment receipts to dispute it with the credit bureau.