CRA Result Code: 37-A The Canada Revenue Agency was unable to process your return due to conflicting information related to one or more of the following. How can I fix?

You would have to make sure that whatever info you have entered matches what the Canada Revenue Agency (CRA) has for you. You may need to contact the CRA and confirm with them what they have, or let them know of any changes. 

If you are in Canada or the United States, you can call the CRA at 1-800-959-8281. If you are elsewhere, you can call 613-940-8495. This page has more ways to contact the CRA: Contact the Canada Revenue Agency