Error: Property 'values' does not exist on type 'unknown'

Hello and good day everyone! so i have been following this tutorial https://devdactic.com/sqlite-ionic-app-with-capacitor/ but I got an error in home.page.ts for this.products= res.values; it said Property ‘values’ does not exist on type ‘unknown’. not sure what does it mean and how to solve it, i am totally beginner in ionic and hope anyone can help me to explain and help me with this.