The transactions on voucher do not balance as per 29-06-2017

Hi.,

I got this Error When I was Invoice the sale order . How to resolve it…,

The transactions on voucher 10000003_063 do not balance as per 29-06-2017. (Company currency: 12,250.00 - secondary currency: 0.00)

Is that the total error? Do you have all the accounts specified?
Why in developer forum though?