Other Configuration Manager-related features and issues
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Do you mean you are trying to move SCCM Database from the current SQL Server to a new SQL Server?
If so, you may need to export SQL Certificate from (Personal Certificates) in the new SQL Server and import it in (Trusted People) in SCCM Server.
You may refer to below thread for more details:
https://social.technet.microsoft.com/Forums/en-US/19aa9fe3-9137-4409-b751-c4ea30e92f48/sccm-fail-to-create-sql-server-certificate?forum=ConfigMgrMigration
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