This generally means you are missing required information in the report you are trying to file.
If you are trying to file a C4, check the Schedule A to see if you have a vendor name for every transaction or the Schedule B for missing contact information. If any are missing, return to the original entry under the Transactions menu, enter all the required information and try to file again.
If you are trying to file a C3, check the report to see if you have missing contributor names. If any are missing, return to the contributions and enter all the required information and try to file again.
If the problem is in the C3 and you have couple names, return to the list of couple names (Accounts>Contacts>Couples>Browse). Make sure the “couple” name is different than either of the individual names. If you named the “Couple” Fred Jones and individual 1 is also Fred Jones, the software doesn’t know if you are attributing a contribution to the couple or the individual. Correct all the “couple” names so they are Fred and Mary Jones, not just Fred Jones. That should make all the names appear correctly on the C3.