FlI on box 20

Hello, I'm  trying  to  file  my  taxes and  on my  w2  it  has 2 Locality names on Box 20.  It says NY  FLI for one of  them. I  try  inputting it  in.  It  says  it's  does  not accept NY FLI. I contacted my employer.  He claims w2  is correct  and  that turbotax is the issue. I never had an  issue with turbotax before, so What can i do now?