License information -> 1 day remaning ?
If you have a new reg code for the new server instance, and the reg code for the old server instance is going to expiring within a day, then I guess Soti should be able to do something in the back-end to allow you to use the old reg code for one more day or so.
However, if you are using the same reg-code on both instances, then your old server should have been made inactive after you have your new server activated with the reg-code. However, it might be a little bit different since last year when there seemed to have a new and more automated activation mechanism with smarter communication between MobiControl server and Soti license server. It might be due to this new mechanism that your old server can still run for at most 1 more day.
I am not from Soti, and the above are my wild guesses on various possibilities. Hence, I suggest you to immediately open an official support ticket with Soti support team at firstname.lastname@example.org, hopefully to have your case properly handled before you leave your office today.
before post this question here; i've send also a mail to support@soti
they reply me in the end and all is ok now !