MongoDB Server Error

C:\Users\TUNA>mongosh --port 37017
Current Mongosh Log ID: 665c972d28bed6034ecdcdf5
Connecting to:          mongodb://127.0.0.1:37017/?directConnection=true&serverSelectionTimeoutMS=2000&appName=mongosh+2.2.6
Using MongoDB:          8.0.0-rc6
Using Mongosh:          2.2.6

For mongosh info see: https://docs.mongodb.com/mongodb-shell/

Enterprise shard0 [direct: secondary] test> rs.status()
{
  set: 'shard0',
  date: ISODate('2024-06-02T16:00:47.637Z'),
  myState: 2,
  term: Long('17'),
  syncSourceHost: '127.0.0.1:37019',
  syncSourceId: 2,
  heartbeatIntervalMillis: Long('2000'),
  majorityVoteCount: 2,
  writeMajorityCount: 2,
  votingMembersCount: 3,
  writableVotingMembersCount: 3,
  optimes: {
    lastCommittedOpTime: { ts: Timestamp({ t: 1717344044, i: 1 }), t: Long('17') },
    lastCommittedWallTime: ISODate('2024-06-02T16:00:44.211Z'),
    readConcernMajorityOpTime: { ts: Timestamp({ t: 1717344044, i: 1 }), t: Long('17') },
    appliedOpTime: { ts: Timestamp({ t: 1717344044, i: 1 }), t: Long('17') },
    durableOpTime: { ts: Timestamp({ t: 1717344044, i: 1 }), t: Long('17') },
    writtenOpTime: { ts: Timestamp({ t: 1717344044, i: 1 }), t: Long('17') },
    lastAppliedWallTime: ISODate('2024-06-02T16:00:44.211Z'),
    lastDurableWallTime: ISODate('2024-06-02T16:00:44.211Z'),
    lastWrittenWallTime: ISODate('2024-06-02T16:00:44.211Z')
  },
  lastStableRecoveryTimestamp: Timestamp({ t: 1717344024, i: 1 }),
  electionParticipantMetrics: {
    votedForCandidate: true,
    electionTerm: Long('17'),
    lastVoteDate: ISODate('2024-06-02T15:57:44.133Z'),
    electionCandidateMemberId: 2,
    voteReason: '',
    lastWrittenOpTimeAtElection: { ts: Timestamp({ t: 1717343684, i: 2 }), t: Long('15') },
    maxWrittenOpTimeInSet: { ts: Timestamp({ t: 1717343684, i: 2 }), t: Long('15') },
    lastAppliedOpTimeAtElection: { ts: Timestamp({ t: 1717343684, i: 2 }), t: Long('15') },
    maxAppliedOpTimeInSet: { ts: Timestamp({ t: 1717343684, i: 2 }), t: Long('15') },
    priorityAtElection: 1,
    newTermStartDate: ISODate('2024-06-02T15:57:44.142Z'),
    newTermAppliedDate: ISODate('2024-06-02T15:57:44.161Z')
  },
  members: [
    {
      _id: 0,
      name: '127.0.0.1:37017',
      health: 1,
      state: 2,
      stateStr: 'SECONDARY',
      uptime: 198,
      optime: { ts: Timestamp({ t: 1717344044, i: 1 }), t: Long('17') },
      optimeDate: ISODate('2024-06-02T16:00:44.000Z'),
      optimeWritten: { ts: Timestamp({ t: 1717344044, i: 1 }), t: Long('17') },
      optimeWrittenDate: ISODate('2024-06-02T16:00:44.000Z'),
      lastAppliedWallTime: ISODate('2024-06-02T16:00:44.211Z'),
      lastDurableWallTime: ISODate('2024-06-02T16:00:44.211Z'),
      lastWrittenWallTime: ISODate('2024-06-02T16:00:44.211Z'),
      syncSourceHost: '127.0.0.1:37019',
      syncSourceId: 2,
      infoMessage: '',
      configVersion: 1,
      configTerm: 17,
      self: true,
      lastHeartbeatMessage: ''
    },
    {
      _id: 1,
      name: '127.0.0.1:37018',
      health: 1,
      state: 2,
      stateStr: 'SECONDARY',
      uptime: 193,
      optime: { ts: Timestamp({ t: 1717344044, i: 1 }), t: Long('17') },
      optimeDurable: { ts: Timestamp({ t: 1717344044, i: 1 }), t: Long('17') },
      optimeWritten: { ts: Timestamp({ t: 1717344044, i: 1 }), t: Long('17') },
      optimeDate: ISODate('2024-06-02T16:00:44.000Z'),
      optimeDurableDate: ISODate('2024-06-02T16:00:44.000Z'),
      optimeWrittenDate: ISODate('2024-06-02T16:00:44.000Z'),
      lastAppliedWallTime: ISODate('2024-06-02T16:00:44.211Z'),
      lastDurableWallTime: ISODate('2024-06-02T16:00:44.211Z'),
      lastWrittenWallTime: ISODate('2024-06-02T16:00:44.211Z'),
      lastHeartbeat: ISODate('2024-06-02T16:00:47.085Z'),
      lastHeartbeatRecv: ISODate('2024-06-02T16:00:47.052Z'),
      pingMs: Long('0'),
      lastHeartbeatMessage: '',
      syncSourceHost: '127.0.0.1:37019',
      syncSourceId: 2,
      infoMessage: '',
      configVersion: 1,
      configTerm: 17
    },
    {
      _id: 2,
      name: '127.0.0.1:37019',
      health: 1,
      state: 1,
      stateStr: 'PRIMARY',
      uptime: 193,
      optime: { ts: Timestamp({ t: 1717344044, i: 1 }), t: Long('17') },
      optimeDurable: { ts: Timestamp({ t: 1717344044, i: 1 }), t: Long('17') },
      optimeWritten: { ts: Timestamp({ t: 1717344044, i: 1 }), t: Long('17') },
      optimeDate: ISODate('2024-06-02T16:00:44.000Z'),
      optimeDurableDate: ISODate('2024-06-02T16:00:44.000Z'),
      optimeWrittenDate: ISODate('2024-06-02T16:00:44.000Z'),
      lastAppliedWallTime: ISODate('2024-06-02T16:00:44.211Z'),
      lastDurableWallTime: ISODate('2024-06-02T16:00:44.211Z'),
      lastWrittenWallTime: ISODate('2024-06-02T16:00:44.211Z'),
      lastHeartbeat: ISODate('2024-06-02T16:00:47.084Z'),
      lastHeartbeatRecv: ISODate('2024-06-02T16:00:46.552Z'),
      pingMs: Long('0'),
      lastHeartbeatMessage: '',
      syncSourceHost: '',
      syncSourceId: -1,
      infoMessage: '',
      electionTime: Timestamp({ t: 1717343864, i: 1 }),
      electionDate: ISODate('2024-06-02T15:57:44.000Z'),
      configVersion: 1,
      configTerm: 17
    }
  ],
  ok: 1,
  '$clusterTime': {
    clusterTime: Timestamp({ t: 1717344044, i: 1 }),
    signature: {
      hash: Binary.createFromBase64('AAAAAAAAAAAAAAAAAAAAAAAAAAA=', 0),
      keyId: Long('0')
    }
  },
  operationTime: Timestamp({ t: 1717344044, i: 1 })
}

and I'm going to write that 

Enterprise shard0 [direct: secondary] test> show dbs
admin        40.00 KiB
config      112.00 KiB
local       460.00 KiB
mydatabase   40.00 KiB
Enterprise shard0 [direct: secondary] test> use mydatabase
switched to db mydatabase
Enterprise shard0 [direct: secondary] mydatabase> sh.enableSharding("mydatabase")
MongoServerError[CommandNotFound]: no such command: 'enableSharding'. Are you connected to mongos?
Enterprise shard0 [direct: secondary] mydatabase>

that always say no such command why that happen?