If you've downloaded your credit report and it shows a list of accounts and statuses, these indicate whether you have remained on track with your repayment.
Status 0 - green, accounts are up to date.
Statuses 1-3 - yellow mean you have missed one, two or three payments.
Statuses 4-6 - red mean you have been four, five or six months in arrears.
Unclassified usually means that the lender hasn't yet provided the information.
Debt Management Programme means that you are in a DMP to repay your debts.
Arrangement to Pay indicates that you have fallen behind and made arrangements with the lender to bring your debt back into good order.