How to fix the blank Ask AI response

The Ask AI feature is generating a response title, but the actual response is blank. How can I fix this?

For example, when I searched ‘Who is the author of the most recent post?’, it responded with ‘Author of Most Recent Post’, but it actually missed its response.

I noticed this after switching the default LLM. Not sure if that’s just a coincidence.
Link: https://business.faktout.com/