You need to write to author of plugin

Thanks igor, yes one of the plugin is created issue. plugin name is woocommerce additional variation gallery. but Igor i want this plugin for my website. please suggest me what should i do?    

please, disable your custom plugins for product swatches and woocommerce modifications, than we can check your site. We can guarantee work of theme, but we can't give you support for third party plugins

Hello Sizam,

First of all your theme are awesome. I Loved it!.
but I have a little issue. the product image gallery is not showing on the product page.