Server 10 is transferring in another subnetwork.
It means that all domains on this server will change their ip addresses.
Main server ip address is changing from 64.74.112.74 to 209.152.180.21
During dns propagation some domains may be inactive for some users (your will see a blue cpanel page in this case).
To force dns repropagation you can run command
ipconfig /flushdns
If your domain is set up out of hostony name servers (for example in nameservers of your domain registrar) you need to change ip address here manually.
Sorry for the possible inconveniences