A/R Report Blank Title 67799

We have a problem with Vantage 6.10 report - Aged Receivables. When we run report and we want to select A/R Account we have a 3 options: BLANK (empty field)Â , COMPANY1, COMPANY2.
If we select only BLANK and click print report preview we see that we have 2 invoices. The problem is, they shouldn't be there.
We check in Customer settings and billings, all our customers have a Group and A\R Account added, there is no empty fields.
Thank you.

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