Demo License.dat expired on installation?

Avast Business Avast Server Protection
1

I’ve installed the Demo Version of Avast Antivirus Server Edition, but the On-Access Protection Control was disabled. I’ve tried to update the virus definitions, but then appeared a message saying that the demo has expired. How could it expired? Do you have a valid license.dat demo file that I could apply to this server?

Thanks in advance

2

Can you give us more info about the server and the operational system running?
Is this the first time you’ve tryied to install avast?
Is there anything relevant on avast logs?