Error "Total Amount Released Exceeds The Agreement Amount Limit" when approving a Std PO"

When a STD PO is created, reference a Contract Purchase Order and submit for approval the error "Total Amount Released Exceeds The Agreement Amount Limit" pops up stopping us from submitting the PO for approval.We have tested this in TEST Instance and we tried with single currency and the scenario is working fine. But when we tested this with multiple currencies, we are still getting the same error.