I installed ScyllaDB Enterprise 30days Trail on Amazon EC2 instance and now I want to Connect dbvisualizer to our this ScyllaDb to execute query. I install DataStax cassandra jar in Dbvisulaizer but not able to connect

I change rpc_address and local_address to Publicip of EC2 instance but after restarting getting below error.

Startup failed: std::system_error (error system:99, posix_listen failed for address Cannot assign requested address