"Most Read Content" module doesn't display titles

"Most Read Content" module is empty on my page. Does not display any title.
I am using only K2 Item instead of normal articles. Could this be the cause?
How can I fix it?

Hi

Naturally
Most read content is native joomla module and doesn't work with K2 content.
If you want to display most popular k2 content i recommend that you use News Show Pro GK4 module.

Cheers

Thanks.