Problem adding additional SEPM 12.1.6 server to existing site

Hi,

I have SEPM 12.1.6 in my site which is running on Windows Server 2008 R2 server. I was previosuly using embedded database. Then i moved from embedded database to MS SQL Server 2008 database on same machine by following the steps outlined in below article.

https://support.symantec.com/en_US/article.TECH102547.html

Everything was fine so far. However when today i was trying to add additional SEPM 12.1.6 server to existing site, i am getting the following error

“The server schema is higher than the database schema, the configuration cannot continue for adding new server”

Can anyone help in resolving this issue?