Error when using multiple Paradox database

Hi,
I was using this Paradox database with my program in Windows platform when I got this error message (please see below). Yes, I was querying and building a table from multiple tables and used this inclusion operator (!).
It seemed that I wasn’t allowed to do this.
So how could I query from multiple tables? Any advice on what to do?
Thanks in advance for the help.

Paradox
Example element cannot be used more than twice with a ! query.
Image: 2
Table: CHURCH.DB
Field: CHIDNUM
Token: EG01
