Database Merging / Re-integration
So you attempted to restore the database in production but it didn’t finish? Can you elaborate more, did it finish completely, we’re there any error messages, etc.

Then you were able to successfully restore the database to a test server?

Have you verified if the backup file is good? See this article if not 

https://www.mssqltips.com/sqlservertutorial/113/checking-to-make-sure-a-sql-server-backup-is-useable/

You may want to check that and if ok try to restore in production again.