Purchase Invoice is now auto paid in full from no bank accounts

Hi, i have completed 3 purchase invoices ,the first 2 are" not paid in full" after i press update which is correct but now in the 3rd one it is auto " paid in full" when i have not made any payment on this invoice.and it has not taken any money from my bank accounts to pay this.Is it something i have done?
TIA

Thank you Tut, it was in the supplier account.My fault ,I have now corrected the entries by using the General Journal

You probably have not entered a supplier. What version is your software? You used to be able to do that, but cannot any longer.

If that purchase invoice has a supplier, can you post a screen shot of it? Also, check Suspense account on the Summary page, which should not be there. Anything in Suspense contains a mistake.

Thank you Tut, it was in the supplier account.My fault ,I have now corrected the entries by using the General Journal