New Post: NBStore and Serbian language

When install and switch Serbian language in DNN (english name: Serbian (Latin, Serbia)),
when I open product, there is error:

Error: NB_Store_ProductList is currently unavailable. DotNetNuke.Services.Exceptions.ModuleLoadException: Culture is not supported. Parameter name: name sr-La is an invalid culture identifier. ---> System.Globalization.CultureNotFoundException: Culture is not supported. Parameter name: name sr-La is an invalid culture identifier. at System.Globalization.CultureInfo..ctor(String name, Boolean useUserOverride) at NEvoWeb.Modules.NB_Store.TokenStoreReplace.GetTokenList(Object obj, String Lang) at NEvoWeb.Modules.NB_Store.TokenStoreReplace..ctor(ProductListInfo objProductInfo) at NEvoWeb.Modules.NB_Store.SharedFunctions.ProductPageName(ProductListInfo ProductListInfo, String CategoryName, String PortalName) at NEvoWeb.Modules.NB_Store.ProductList.populateSP(Int32 ProdID) at NEvoWeb.Modules.NB_Store.ProductList.Page_Init(Object sender, EventArgs e) --- End of inner exception stack trace ---

Other languages works fine... what is problem? Maybe culture cannot be sr-La, how to change that to sr-Latn-RS ?