Valid query expression is expected.
- You made a typo.
- You've made a programming error that produces a corrupt expression (where usually the expression is valid).
- Check that you're adhering to the right format. Query expressions must be specified in infix notation in the form
field operator "value".
- Check that you're using supported operators. Please review https://www.twilio.com/docs/sync/live-query for a list of supported operators and query examples examples.