Work down this list. The first two cover almost every case.
1. Is the product indexed?
Open Products and find it. If it says Not indexed, that's your answer — the
widget deliberately shows nothing on products without a knowledge base, rather than
displaying an empty box that gives bad answers.
Index it and reload the product page.
2. Is the block in your theme?
The app can't add itself. Go to Online Store → Themes → Customize, switch to your
product template, and check whether Ask Any AI is in the block list.
The app home page also runs a check for this, but it looks at your published theme.
If you added the block to a draft theme and never published it, the check will
correctly report it as missing.

📷 The widget status check on the app home page, showing the widget as active.
See Add the widget to your product pages.
3. Are you looking at the right template?
If the product uses a different product template from the one you edited — a bundle
template, a gift card template — the block isn't on it. Add the block to that
template as well.
4. Did you just reinstall the app?
If the home page is showing "Your storefront data needs restoring", the data the
widget reads is missing from your store even though your knowledge bases are intact.
Click Restore storefront data. It doesn't cost any AI generations. See
Your storefront data needs restoring.
Still nothing
Make sure you're looking at your live storefront rather than a cached preview, and
do a hard reload. If it's still missing, email support@aruslabs.co with the
product URL and your store domain.