Unable to get basic blockchain data

• If you just started your node, it may still be initializing.

  At startup, bitcoind verifies its block index before making itself available to serve data. The amount of time the verification process takes depends largely on the speed of the machine bitcoind is running on. If you're running bitcoind on low powered, inexpensive hardware, don't be surprised if this process takes a long time.

• If you believe your bitcoind node is already initialized...

  Check your RPC connection info and/or check this application's error log for possible hints about the cause of this issue.