Hi Nawaz76,
ok, your theme is using Gravatar to load the image of the post author and we cannot override the “get_avatar” function in a way that is safe for any environment out there.
However, you have to options to solve your issue:
1) Make sure all registered authors and guest users have an email address that has been registered with Gravatar. Each of them must upload a profile image there.
2) If option 1 is not viable, you can disable the display of the author image at the top of your posts. You should be able to do that using your theme settings page(s). This shouldn’t be a problem because author image will be displayed within the Molongui author box.
Hope this helps!
Regards,
The Molongui Team