So mongoose was working just fine for more than 2 months, but suddenly crashed with this error

/home/container/node_modules/mongodb/lib/cmap/connection.js:210
                    callback(new error_1.MongoServerError(document));
                             ^
MongoServerError: bad auth : Authentication failed.
    at Connection.onMessage (/home/container/node_modules/mongodb/lib/cmap/connection.js:210:30)
    at MessageStream.<anonymous> (/home/container/node_modules/mongodb/lib/cmap/connection.js:63:60)
    at MessageStream.emit (node:events:527:28)
    at processIncomingData (/home/container/node_modules/mongodb/lib/cmap/message_stream.js:132:20)
    at MessageStream._write (/home/container/node_modules/mongodb/lib/cmap/message_stream.js:33:9)
    at writeOrBuffer (node:internal/streams/writable:390:12)
    at _write (node:internal/streams/writable:331:10)
    at MessageStream.Writable.write (node:internal/streams/writable:335:10)
    at TLSSocket.ondata (node:internal/streams/readable:777:22)
    at TLSSocket.emit (node:events:527:28) {
  ok: 0,
  code: 8000,
  codeName: 'AtlasError',
  [Symbol(errorLabels)]: Set(1) { 'HandshakeError' }
}

Anyone knows what is the issue? My IP is configured as access from anywhere correctly Using connection to application, my uri is well configured and copy pasted to my project, and again the connection was perfect for 2months but stopped out of nowhere