(Edit: this comment is incorrect) Thanks for sending the syntax! Since you didn't write the syntax manually, I'm guessing you used the Reduce Base window and entered multiple values in the box. Only one value is supported. So that window created invalid syntax for you...
nullifeq function only supports two arguments, with the second argument being the value to exclude from the base. In order to exclude multiple values from the base, you'll have to manually edit the syntax:
4/26/2018 9:06:19 PM