Frozen Voyage gets "This Voyage is not Freezed" Message in Hire Payable

Problem

When opening a frozen voyage under a time charter (TC) in contract in Hire Payable the message "This voyage is not freezed. Please freeze voyage before invoicing" displays. How can this be recified?

Solution

If one or more of the voyages on the aplicable TC in contract has/have been unfrozen, this message will show. T