So what's the problem? I need more information.....
Can you open SCT?
Do you have an archive database to open? Or is SCT just a blank page?
You must have an archive (backup) copy of your database in SCT to make changes and download those changes. If you don't have a database to work with, you will need to build one with the correct site/nae names and upload. After you have uploaded the online database, you can make offline changes then download the changes. It's not as hard as it sounds....
can someone please tell me how to access the SCT System "Offline mode" to make changes to database
You can access it remotely, assuming SCT is on your ADS, by using the same shortcut you use for the UI and changing metasys to sct. ie 'https://10.18.1.6/metasys' for ADS UI, 'http://10.18.1.6/sct' for SCT.