188.8.131.52 is a very old version from 2008
It seems like your database user is not dbo (database owner)
I would look in the database and see if your tables and stored procedures have a different prefix than dbo ie in my database things are named like dbo.TableName or dbo.StoredProcedure name
If you have something else for a prefix you might try changing this setting in web.config so it matches your prefix
<add key="MSSQLOwnerPrefix" value="[dbo]." />
ie try changing it to
<add key="MSSQLOwnerPrefix" value="[yourprefix]." />
where yourprefix is replaced by whatever your real prefix is.
Then try visit the setup page again.
Hope that helps,