Error in client profile

My client has paid all his invoices and I have marked all of them as paid. When I download their statement, it shows 0 balance due which is correct but as soon as I enter their profile form clients section, it shows -1000 balance.
I don’t understand what this -1000 mean when all the dues are already paid. could anyone please tell me whats going on?


@david any thoughts?

Never mind. I have edited their profile in mysql and made the change. Please fix this issue as someone else may face this kind of issue.