I received rejection ' Invalid Status of Request', it has been sent as Add and Modify already. What does it mean and How should I proceed?

I received rejection ' Invalid Status of Request', it has been sent as Add and Modify already. What does it mean and How should I proceed?

Possible reason is that the transaction has been manually released by customs. Client may call/email CBSA TCCU to check the status of the CRN.
Hotline: 1-888-957-7224
Email: cbsa.edi@cbsa-asfc.gc.ca / TCCU-USTCC@cbsa-asfc.gc.ca