I have a block enabled on home page

For the Month it is saying one member Riya - She has last visted in 2013 - How can be she the contributor for this month

and for this week - It is showing nothing - Though it has been more then four hours - I have uploaded one file in Download section

 

How this work?

Have your background tasks finished? The Top Contributor won't look correct until all the background recounts have been done. And it's based on reputation in a time period.

Yes background task finished..........

 

The member got the reputation   but has not visted the forum.... so can they be top contributor for the week / month