In this blog post, you’ll learn more about the SQL Server Error Code 49960 and the error message description that is shown
SQL Server Error Code
SQL Server Error Description for the Code :49960
Did not find an existing master data file %s, copying the missing default master and other system database files. If you have moved the database location, but not moved the database files, startup may fail. To repair: shutdown SQL Server, move the master database to configured location, and restart.