Upgrade Magento 2.3 and store code base is not found

Question

I upgraded my Magento 2.3.1 to 2.3.6, I'm seeing this message in the frontend.

The website with code base that was requested wasn't found. Verify the website and try again.

How could I fix it?

Answer 1

I fixed it by changing in my database the store code to base in the store_website table.