This means that you tried to NETFILE several times and each time it was unsuccessful. The CRA has blocked you from filing because you have done it too many times. You can contact the CRA to get your NETFILE account unlocked. If you are in Canada or the United States, you can call the Canada Revenue Agency (CRA) at 1-800-959-8281. If you are elsewhere you can call 613-940-8495.
