Cannot connect to RPC endpoint
Check if your local nodeos
is running by visiting the following URL in your browser:
curl http://localhost:8888/v1/chain/get_info
If you are trying to connect a remote nodeos
API endpoint, try to visit the API endpoint with the following suffix:
http://API_ENDPOINT:PORT/v1/chain/get_info
Replace API_ENDPOINT and PORT with your remote nodeos
API endpoint detail
"Missing Authorizations"
That means you are not using the required authorizations. Most likely you are not using correct EOSIO account or permission level to sign the transaction