Installation Error theme not working!!

Hello,
Installation Error template.
Theme not working.
Can someone help me?
tks

( ! ) Notice: Undefined property: stdClass::$price in H:\wamp\www\RC\Site\modules\mod_news_pro_gk4\gk_classes\gk.source.vm.php on line 235
Call Stack
# Time Memory Function Location
1 0.0007 689224 {main}( ) ..\index.php:0
2 0.5503 15561952 JSite->render( ) ..\index.php:48
3 2.2220 18973264 JDocumentHTML->render( ) ..\application.php:261
4 2.2220 18973264 JDocumentHTML->_renderTemplate( ) ..\html.php:433
5 8.7952 35602448 JDocumentHTML->getBuffer( ) ..\html.php:655
6 8.7953 35603064 JDocumentRendererModules->render( ) ..\html.php:371
7 8.7953 35604048 JDocumentRendererModule->render( ) ..\modules.php:39
8 8.7962 35633376 JModuleHelper::renderModule( ) ..\module.php:106
9 8.7979 35733624 include( 'H:\wamp\www\RC\Site\modules\mod_news_pro_gk4\mod_news_pro_gk4.php' ) ..\helper.php:175
10 8.7994 35762456 NSP_GK4_Helper->getDatas( ) ..\mod_news_pro_gk4.php:28
11 8.8018 35769096 NSP_GK4_VM_Source->getProducts( ) ..\helper.php:424

_______________________________________________________________________________________________( ! ) Notice: Undefined property: stdClass::$price_currency in H:\wamp\www\RC\Site\modules\mod_news_pro_gk4\gk_classes\gk.source.vm.php on line 236
Call Stack
# Time Memory Function Location
1 0.0007 689224 {main}( ) ..\index.php:0
2 0.5503 15561952 JSite->render( ) ..\index.php:48
3 2.2220 18973264 JDocumentHTML->render( ) ..\application.php:261
4 2.2220 18973264 JDocumentHTML->_renderTemplate( ) ..\html.php:433
5 8.7952 35602448 JDocumentHTML->getBuffer( ) ..\html.php:655
6 8.7953 35603064 JDocumentRendererModules->render( ) ..\html.php:371
7 8.7953 35604048 JDocumentRendererModule->render( ) ..\modules.php:39
8 8.7962 35633376 JModuleHelper::renderModule( ) ..\module.php:106
9 8.7979 35733624 include( 'H:\wamp\www\RC\Site\modules\mod_news_pro_gk4\mod_news_pro_gk4.php' ) ..\helper.php:175
10 8.7994 35762456 NSP_GK4_Helper->getDatas( ) ..\mod_news_pro_gk4.php:28
11 8.8018 35769096 NSP_GK4_VM_Source->getProducts( ) ..\helper.php:424

Help please????

Not Working theme!!

tks

Help please????????????????????????????

Not Working theme!!

tks

Hi

Sorry, but this error is just a waring that a price value was not declared. Script will work without it anyway. Can You please tell me what is not working ? Or show me, that would be best.