Cannot open database "WSS_Content_AIAU" requested by the login. The login failed.
Login failed for user 'AIAU\Administrator'.   at System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject)
   at System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection)
   at System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory)
   at System.Data.SqlClient.SqlConnection.Open()
   at Microsoft.SharePoint.Utilities.SqlSession.OpenConnection()
   at Microsoft.SharePoint.Utilities.SqlSession.ExecuteNonQuery(SqlCommand command)
   at Microsoft.SharePoint.Upgrade.SPDatabaseSequence.GetVersion(Guid id, Version defaultVersion, SqlSession session, SPDatabaseSequence sequence)
   at Microsoft.SharePoint.Administration.SPContentDatabase.ValidateDatabaseSchemaCompatibility()
   at Microsoft.SharePoint.SPSite.PreinitializeServer(SPRequest request)
   at Microsoft.SharePoint.SPWeb.InitializeSPRequest()
   at Microsoft.SharePoint.SPWeb.EnsureSPRequest()
   at Microsoft.SharePoint.SPWeb.get_Request()
   at Microsoft.SharePoint.WebControls.SPControl.SPWebEnsureSPControl(HttpContext context)
   at Microsoft.SharePoint.WebControls.SPControl.GetContextWeb(HttpContext context)
   at Microsoft.SharePoint.ApplicationRuntime.BaseApplication.Application_PreRequestHandlerExecute(Object sender, EventArgs e)
   at Microsoft.SharePoint.ApplicationRuntime.SPRequestModule.PreRequestExecuteAppHandler(Object oSender, EventArgs ea)
   at System.Web.HttpApplication.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
   at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)