خطا دز اضافه کردن iis 8 به wsp ورژن 2.1 روی ویندوز 2012

سلام
در منوی configuration بعد به تب servers وقتی میخواهم گزینه website را اضافه کنم و روی iis 8 ست می کنم، خطای زیر رو میده.
همه چیز نصب هستش.کلی هم فوروم های خارجی را خوندم.چیزی نصیبم نشده.
ممنون میشم اگر کسی میتونه کمک کنه حتی با پرداخت هزینه.
سرور ویندوز 2012 دیتاسنتر 64 بیتی
وبسایت پنل ورژن 2.1.0

System.Web.Services.Protocols.SoapException: System.Web.Services.Protocols.SoapException: Server was unable to process request. —> System.BadImageFormatException: Could not load file or assembly ‘WebsitePanel.Providers.Web.IIs80′ or one of its dependencies. This assembly is built by a runtime newer than the currently loaded runtime and cannot be loaded.
File name: ‘WebsitePanel.Providers.Web.IIs80′
at System.RuntimeTypeHandle._GetTypeByName(String name, Boolean throwOnError, Boolean ignoreCase, Boolean reflectionOnly, StackCrawlMark& stackMark, Boolean loadTypeFromPartialName)
at System.RuntimeTypeHandle.GetTypeByName(String name, Boolean throwOnError, Boolean ignoreCase, Boolean reflectionOnly, StackCrawlMark& stackMark)
at System.RuntimeType.PrivateGetType(String typeName, Boolean throwOnError, Boolean ignoreCase, Boolean reflectionOnly, StackCrawlMark& stackMark)
at System.Type.GetType(String typeName)
at WebsitePanel.Providers.HostingServiceProviderWebSe rvice.get_Provider()
at WebsitePanel.Server.WebServer.InitFeeds(Int32 UserId, String[] feeds)
WRN: Assembly binding logging is turned OFF.
To enable assembly bind failure logging, set the registry value [HKLM\Software\Microsoft\Fusion!EnableLog] (DWORD) to 1.
Note: There is some performance penalty associated with assembly bind failure logging.
To turn this feature off, remove the registry value [HKLM\Software\Microsoft\Fusion!EnableLog].