DAX 2009 - oversettlement when posting a client payment journal

Greetings!

When I try to post a client payment journal, the following error message appears: "Update for voucher CRNFV_029840 has been canceled to avoid oversettlement.  The settled customer or vendor balance for the transaction must not exceed the transaction amount."

I'm debugging, looking for things in the system and searching things on Internet, but I'm not finding much information... Has anybody had this same problem? Does anybody know how to solve it?

Thanks in advance!
Luiz Bezerra