Newbie! features not working during free trial

I downloaded Avast today and signed up for the free trial. Entered activation code. Ran a clean up scan and was told to fix issues i had to sign up for a year. What am i doing wrong? I assumed during free trial features would work.

https://www.avast.com/compare-antivirus

I got the same issue. The above link worked out for me, thx!!