Changing imageshow GK4 on home page

Hello, Can anyone explain why I get this message? I am trying to link the Image show GK4 slide to a K2 item and I get this error:
"Deprecated: Non-static method GKIS_gk_musicstate_Model::getDataK2() should not be called statically, assuming $this from incompatible context in C:\xampp\htdocs\kilkie\modules\mod_image_show_gk4\styles\gk_musicstate\controller.php on line 85"

On the front end the article shows OK, image is fine, articles is linked ok too, just the error message.

thanks

Martin

Some additional info.

I found the Gavick help page re this error and tried both solutions - changing Joomla global error settings - no change, changing php.ini - no change.

Interestingly the error occurs on my development server (xampp) and my host (1and1). Also the error doesnt occur in my site based on storebox template which also uses imageshow gk4 which is on the same server with the same php.ini settings.

This problem only happens in this template and it happens whenever you choose a content article or a K2 article instead of just text.

Hi

This is comming from Your PHP version. Newer PHP is trying to force programmers to new programming style, unfortunately NSP is pretty old so code is created using old method. There is no impact on functionality, but the message needs to be hidden. If global joomla settings naf php.ini are not reacting this means that there is an override for hidding noticed on server. Please ask Your hosting provider how to force it not to show it.