Product Search Widget Returns No Results

I can’t say this problem happens with every keyword, but with multiple I’ve tested it does. For example, when I search “shirts,” I get no results found. However, I do have the tag “shirts” used for multiple products.

I tried disabling all plugins except the following:

• WooCommerce
• WP-Staging (how I test the site)
• Printful Integration

However, nothing changed.

I tried using the WP them Twenty Nineteen, but again, the results were the same.

I’m using WooCommerce 3.8.0 and WordPress 5.3.

The page I need help with: [log in to see the link]