Dear Team,

I've downloaded a free template from Gavick Pro and it is already integrated with K2 extension.
The package is using Joomla 2.5.6 with K2 v 2.5.7.

The things is I cannot change the image in K2 item. Image is already uploaded from tab Image in the backend and the preview is shown already. But when I open the article in the site, the image is changed into "Demo GK" image.

How can I fix this?

Thank you.

Regards,
Alan.

Check your K2 dashboard information tab.
Is mb_string enabled ?
if So, try ticking the box delete image, save, and try to select your image again, and save