Answer not being accepted

Screen Link:

My Code:

Select 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