Stack Trace
System.Web.Services.Protocols.SoapException: System.Web.Services.Protocols.SoapException: Server was unable to process request. ---> System.Exception: Error executing 'ADD' task on 'demo.com' WEB_SITE ---> System.NullReferenceException: Object reference not set to an instance of an object at WebsitePanel.EnterpriseServer.WebServerController.AddWebSite(Int32 packageId, Int32 domainId, Int32 packageAddressId, Boolean addInstantAlias) --- End of inner exception stack trace --- at WebsitePanel.EnterpriseServer.WebServerController.AddWebSite(Int32 packageId, Int32 domainId, Int32 packageAddressId, Boolean addInstantAlias) at WebsitePanel.EnterpriseServer.ServerController.AddDomainWithProvisioning(Int32 packageId, String domainName, DomainType domainType, Boolean createWebSite, Int32 pointWebSiteId, Int32 pointMailDomainId, Boolean createDnsZone, Boolean createInstantAlias, Boolean allowSubDomains) --- End of inner exception stack trace --- at System.Web.Services.Protocols.SoapHttpClientProtocol.ReadResponse(SoapClientMessage message, WebResponse response, Stream responseStream, Boolean asyncCall) at System.Web.Services.Protocols.SoapHttpClientProtocol.Invoke(String methodName, Object[] parameters) at WebsitePanel.EnterpriseServer.esServers.AddDomainWithProvisioning(Int32 packageId, String domainName, DomainType domainType, Boolean createWebSite, Int32 pointWebSiteId, Int32 pointMailDomainId, Boolean createDnsZone, Boolean createInstantAlias, Boolean allowSubDomains) at WebsitePanel.Portal.DomainsAddDomain.AddDomain()
Cause
Sometimes when we create a website from WebsitePanel, synchronization between WebsitePanel and IIS web server breaks when the process is running. As a result, website will be created on server but did not complete the process so, we receive the error message at WebsitePanel.
Solution
Removing the website from IIS and recreating it from WebsitePanel should fix this issue. Windows VPS customers have administrative access over IIS so that they can remove website from IIS themselves. Shared Hosting customers can initiate the ticket from client area to get it fixed.