If you see the error stating: "API Communication error", it is most likely because the api.counterparty.io load balancer is not supporting HTTP requests anymore
With version 2.0.1 the server settings can simply be "Reset to Default" and it is recommended to use these default settings:
Mainnet API Host is set to: cp20.tokenscan.io
Mainnet CP Host is set to: cp20-api.tokenscan.io
Testnet API Host is set to: cp20-testnet.tokenscan.io
Testnet CP Host is set to: cp20-api.tokenscan.io
CP Port is set to 4001 on Mainnet and 14001 on Testnet