Liquidation Error on Purchase Order Within Invoice Entry

Receiving error when modifying the liquidated amount of PO within Invoice Entry Error 2 updating liquidation data, status:....

Munis 

Accounts Payable

Invoice Entry 

INV Amount missing from the PO Account Liquidation screen

Financials > Accounts Payable > Invoice Processing > Invoice Entry

1. Add header option of Invoice
2. Once in the Purchase Order Account Liquidation screen, Modify PO to key in the LIQ Amount and INV amount
3. Click Accept to save the liquidation record
4. Click Accept to save invoice