Answer not being accepted

Screen Link:
https://app.dataquest.io/m/2000598/less-common-joins-assessment/3/question-3

My Code:

Select g.name genre_name, SUM(il.unit_price*quantity) total_revenue
from genre g
left join track t 
on t.genre_id=g.genre_id
left join invoice_line il 
on t.track_id=il.track_id
group by 1;

What I expected to happen:
solution should be correct

What actually happened:

error is coming that all column that were expected not there