The server certificate does not seem to be valid!

Avast Business Avast Distributed Network Manager
1

Today the adnm console has a problem. On login I obtain this error: “The server certificate does not seem to be valid!”.
For resolve this problem, with AMS Maintenance I have reload the license.dat file, restart the Management service and then restart the server without any good effect.
What can I do now?
There is a way for install a client package by hand?

2

the license file is something else then the certificate…

in the AMS you can also create a new certificate try that

3

Thanks a lot!
Now I have understand wich is the way.