Departure cancelling of the vessel by DFAR due to following reasons are listed here

1.Technical none suitability of vessels due to repair requirements
2.Departure rejected vessels for the latest trip request due to onboard technical or compliance issues
3.Not visible vessels (for high seas fishing) in the VMS interface due to technical errors that has to be altered before the next trip
4.Due to an ongoing investigation or court order  
5.Due to an ongoing owner transfer process   
6.Due to administrative issues

you can access to the current departure cancel vessel ist by clicking on the below link

Departure cancelled boat list