Countif not working properly in summary sheet

Bart13550 ✭✭
edited 12/09/19 in Smartsheet Basics
I am attempting to create a sheet summary to summarize complaints. 


I would like the sheet summary to count the number of complaints by month.  I have entered in this function for October: =COUNTIF(Month:Month, "October"). It is working properly.


However I tried to enter this for September: =COUNTIF(Month:Month, "September"). I am getting an #UNPARSEABLE error message.


Any ideas why one is working but the other is not?