Unit cell is not charge neutral from COD .cif file

Hi everyone,
I got the .cif file of Na2WO4 from Crystallography Open Database and use it for the GULP input file, but the program terminated with a massage “Unit cell is not charge neutral”. I tested the input file and know that the problem is the structure of Na2WO4. The input file is as followed:

conp optimise properties compare phono distance

name WO3
cell
5.261 5.128 7.650 90 92.05 90
fractional 4
W core 0.2563 0.2681 0.2882
O core 0.042 0.039 0.202
O core 0.442 -0.046 0.199
O core 0.255 0.327 0.012
spacegroup
14

name Na2WO4
cell
9.12974 9.12974 9.12974 90 90 90
fractional 3
O core 0.262246 0.262246 0.262246
W core 0.375 0.375 0.375
Na core 0.0 0.0 0.0
spacegroup
227

species
W core 3.6
Na core 0.6
O core -1.2

buck
Na core O core 4383.7555 0.243838 30.70 0 10 0 0 0
O core O core 2029.2204 0.343645 192.6 0 10 0 0 0 
W core O core 2000 0.3 30 0 10 0 0 0

Any guidance would be greatly appreciated!

Sincerely,
Tianze

The problem is that your coordinates are not in the standard origin setting.
If you add:

origin 2

after the space group then it will be fine.
Regards,
Julian

Thank you! It helps a lot.
Best regards,
Tianze