It depends on which record you deleted, i.e. in table Users only???
I guess your solution is as follows: try to check which was the primary key of the host account (UserID filed in table Users). I guest it should be 1, and this is the record which you deleted.
Then run the following:
SET IDENTITY_INSERT products ON
GO
-- make sure this is your users table name, i.e. you do not have a qualifier or different owner
INSERT INTO [dbo].[Users]
([UserID]
,[Username]
,[FirstName]
,[LastName]
,[IsSuperUser]
,[Email]
,[DisplayName]
,[UpdatePassword]
,[IsDeleted]
,[CreatedByUserID])
VALUES
(1
,"host"
,"SuperUser"
,"Account"
,1
,"youremail@email.com"
,"DisplayName"
,0
,0
,-1)
GO
SET IDENTITY_INSERT products OFF
GO
Evan Camilleri
http://www.DotNetMushroom.com