Sucuri – Database table set to the default value wp_

Sucuri’s Database table prefix tells me Database table set to the default value wp_

My wp_config file says define('DB_NAME', 'xx_wpxx'); with multiple characters in place of xx.

I checked my databases in phpmyadmin there is a folder? (not sure if “folder” is the right term) named ‘wpx’ It contains databases for my live and staging sites named “xx_wpxx”

Is this warning an error? Is it triggering because my database names CONTAIN wp? Am I misunderstanding what it is telling me?

Thanks