I cannot turn on my discord bot with this message

MongoError: bad auth : Authentication failed.
at MessageStream.messageHandler (/home/runner/Saturn-bot/node_modules/mongodb/lib/cmap/connection.js:299:20)

MongoError: bad auth : Authentication failed.
    at MessageStream.messageHandler (/home/runner/Saturn-bot/node_modules/mongodb/lib/cmap/connection.js:299:20)
    at MessageStream.emit (events.js:375:28)
    at processIncomingData (/home/runner/Saturn-bot/node_modules/mongodb/lib/cmap/message_stream.js:144:12)
    at MessageStream._write (/home/runner/Saturn-bot/node_modules/mongodb/lib/cmap/message_stream.js:42:5)
    at writeOrBuffer (internal/streams/writable.js:358:12)
    at MessageStream.Writable.write (internal/streams/writable.js:303:10)
    at TLSSocket.ondata (internal/streams/readable.js:726:22)
    at TLSSocket.emit (events.js:375:28)
    at addChunk (internal/streams/readable.js:290:12)
    at readableAddChunk (internal/streams/readable.js:265:9)
    at TLSSocket.Readable.push (internal/streams/readable.js:204:10)
    at TLSWrap.onStreamRead (internal/stream_base_commons.js:188:23) {
  ok: 0,
  code: 8000,
  codeName: 'AtlasError'
} Promise {
  <rejected> MongoError: bad auth : Authentication failed.
      at MessageStream.messageHandler (/home/runner/Saturn-bot/node_modules/mongodb/lib/cmap/connection.js:299:20)
      at MessageStream.emit (events.js:375:28)
      at processIncomingData (/home/runner/Saturn-bot/node_modules/mongodb/lib/cmap/message_stream.js:144:12)
      at MessageStream._write (/home/runner/Saturn-bot/node_modules/mongodb/lib/cmap/message_stream.js:42:5)
      at writeOrBuffer (internal/streams/writable.js:358:12)
      at MessageStream.Writable.write (internal/streams/writable.js:303:10)
      at TLSSocket.ondata (internal/streams/readable.js:726:22)
      at TLSSocket.emit (events.js:375:28)
      at addChunk (internal/streams/readable.js:290:12)
      at readableAddChunk (internal/streams/readable.js:265:9)
      at TLSSocket.Readable.push (internal/streams/readable.js:204:10)
      at TLSWrap.onStreamRead (internal/stream_base_commons.js:188:23) {
    ok: 0,
    code: 8000,
    codeName: 'AtlasError' 
Full message

Means you specified the wrong user name or password in your connection string.