Error 91 on RMS Dynamics POS

Hello,

I have a condition running RMS Microsoft Dynamics that crashes POS and gives error 91 object not found ( or something similar).

This happened when we placed an order on hold for an account. Later we discovered that this customer had already an account with different number. So,,,, we deleted the account that this on hold order is done in mind that when we recall the on hold order we would change the customer to the one we wanted to use. But when recalling this order from on hold error 91 takes over and POS exits.  Restarting is no problem anything else seems to be working right what I want to do is remove that offending order from on hold if it is possible.

Anyone any suggestion?

Thanks TheNeos