Follow the below steps to re-enable that option :
1> Login to Server via SSH as a root user
2> open this file : /var/cpanel/cpanel.config in you favorite editor
root@server[#] vi /var/cpanel/cpanel.config
and then search for the line : database_prefix=0
and replace it with database_prefix=1
save and quit.
restart the cpanel service
root@server[#] /etc/init.d/cpanel restart
That’s all you are done.