Whenever you are setting up LinkFixer Advanced to use SQL Server, ONLY create a separate blank data base for use by LinkFixer Advanced. LinkFixer Advanced will create the necessary schema within this database. Please see this note in the LinkFixer Advanced User’s Guide:

Note: Also, the following is important know regarding the SQL database:

  1. LinkFixer Advanced requires a dedicated database, where it is "db_owner.
  2. LinkFixer Advanced was not designed to work on a named schema within a shared SQL database.
  3. When LinkFixer Advanced creates the schema, it does not use named schemas and expects its own schema to be the default ("dbo"). There should not be any conflict with other schemas as LinkFixer Advanced only uses and requires a single schema for its operation. 

For more information, see the following article under the section titled "Default Schema": https://technet.microsoft.com/en-us/library/dd283095%28v=sql.100%29.aspx