An error occurred when a database user attempted to log on to the database instance. The last database user who was successfully logged on has been logged on again.
This error message only appears if a new database user is unable log on to a database instance after another database user has already been logged on and after processing of export and import commands. This message precedes the error message –25005.
Since this message merely informs you that a previous connection has been restored, proceed as described in error message -25005.