"version": 1000000,
  "protocolversion": 70210,
  "walletversion": 61000,
  "balance": 0.00000000,
  "privatesend_balance": 0.00000000,
  "blocks": 6434,
  "timeoffset": 0,
  "connections": 11,
  "proxy": "",
  "difficulty": 30810.13321472894,
  "testnet": false,
  "keypoololdest": 1553169920,
  "keypoolsize": 999,
  "paytxfee": 0.00000000,
  "relayfee": 0.00001000,
  "errors": "Warning: At least 0 of 1 masternodes are running on a newer software version. Please check latest releases, you might need to update too.

What does it mean?