Hi,
[810023] Error during execution of statement: 
 set lock_timeout 10000
 declare @ErrorMessage nvarchar(1000)= '50000'+char(9)+'2'+char(9)
 if exists (select top 1 1
 from sys.tables t
 where t.type = 'U' 
 )
 begin
 select @ErrorMessage = concat(@ErrorMessage
 , '#LDS#Creating a new master is only allowed on empty databases.|'
 )
 raiserror(@ErrorMessage, 18, 2) with nowait
 end
 set lock_timeout-1
While carrying out upgrade from version 8.0.2 to 8.1.5, via config wizard we are getting the [810143] Database error 50000: Creating a new master is only allowed on empty databases.
Our DB User has sysadmin and db creator access.
Can anyone Please help us , as in what could be the wrong in here ?