The images have been uploaded, but not showing up in the WP Author Bio plugin

http://startoholics.in/2013/08/user-gives-a-missed-call-and-your-customer-gets-verified-dial2verify/

like in this link, at the end, the pic of this user is not being shown. I tried disabling gravatar too, but then only a blank image is shown.
Can you please help and let me know what I need to do?
And yes, I have changed the permissions of the folder too.