Business Rule Failed to save

i am using creatio version 8.2.0

I am trying to save a business rule that filters Kota(Lookup) by Provinsi(Lookup), i know how it works, it's just when i save it, it doesn't save. 

i used static filter

now when i saved, it doesn't let me save the filter JakartaKota

and when i open the business rule page again it turns out into this