This error is happening because QuickBooks does not recognize the amount of the receipt. Since this error does not reference an invoice, it is most likely because the receipt is for a payment of a negative amount.
If the receipts in question were made in an attempt to give a customer credit or refund an amount, try deleting the receipts and creating the refund or deposit through the accounting section. Click here for instructions. If the receipts in question were payments taken against an invoice, try deleting the receipts and taking payment again.