Migration from Standard to Express-C

I'm trying to migrate RTC Server from Standard(2.0) to Express-C(2.0.0.1).
Everything works smoothly. However, it looks the previous license info is imported along with the data to the new server. The expiration date is still set unchanged.
How can I fix it? Otherwise, we should recreate all of the data.

Thanks in advance.

I wonder if I will be able to use it with the Express-C license after expiration of the Standard license.