Unable to Submit 2024 Tax Return

I keep getting an error with the CRA Result Code N1.  The error says "Authentication failed.  Please carefully complete all identification fields."  I get this error message for all 3 tax returns I am trying to submit for myself and family members.  I went back through everything to make sure I have not missed any fields and I have not and yet I still keep getting this message.  I have went in an cleared all my cache and have also tried using different internet browsers on 2 different computers and I still keep getting the same error.  HELP!