Bankruptcies, CCJs and IVAs will stay on your report for six years from the issue date, even if you've paid them. If there are any bankruptcies, CCJs and IVAs on your report that you feel are incorrect, you'll need to get these removed as they can an impact on your credit score. You'll need to contact the court directly with your case number (contact details found below):
England and Wales: https://courttribunalfinder.service.gov.uk/search/
Northern Ireland: http://www.courtsni.gov.uk/about+us/contact+us.htm
Isle of Man: http://www.gov.im
If you believe you have paid off this money but it is still showing up as unsatisfied on your report, you'll need to send your proof of payment to the court listed in your credit report and include the court fee of £15.
You will then be sent a certificate of satisfaction from the court. The Registry Trust will be automatically informed of these changed as will let Equifax know. Equifax will update your credit report within one month of you paying this money and you will see the changes in your next credit report.