nope, not using the cleanup tool.
What you are seeing is effectively an Ad for the paid version of Avast Cleanup.
Whilst you might not be using it, that is different from having it installed. It is a component of the avast free version, but it is effectively crippled, it can detect if you need junk or unnecessary programs, etc. removed. If you want them removed then it sends you to pay for the full paid version.
Ensure that you have the Cleanup component uninstalled not just not using it. If you need a Cleanup function then I would suggest using free version of CCleaner from Piriform, now a part of Avast Software.