Why every night at 4am is logged this error?

Hi all, i notice ever night, at same hour, on server log this error and i cannot know what i am wrong. Thanks for help.

I20200506-04:00:02.248(2) Error: failed [401] {“code”:423,“requestId”:“7abeb918-03d0-46b6-b0d4-b9fd146d6b03”,“status”:401}{“code”:440,“requestId”:“55fcce02-9563-44d7-8572-82361aa4ba94”,“status”:401} at Object.exports.makeErrorByStatus (packages/http.js:176:10) at Request._callback (packages/http.js:140:24) at Request.self.callback (/snap/rocketchat-server/1431/programs/server/npm/node_modules/meteor/http/node_modules/request/request.js:185:22) at Request.emit (events.js:311:20) at Request.EventEmitter.emit (domain.js:482:12) at Request. (/snap/rocketchat-server/1431/programs/server/npm/node_modules/meteor/http/node_modules/request/request.js:1161:10) at Request.emit (events.js:311:20) at Request.EventEmitter.emit (domain.js:482:12) at IncomingMessage. (/snap/rocketchat-server/1431/programs/server/npm/node_modules/meteor/http/node_modules/request/request.js:1083:12) at Object.onceWrapper (events.js:417:28) at IncomingMessage.emit (events.js:323:22) at IncomingMessage.EventEmitter.emit (domain.js:482:12) at endReadableNT (_stream_readable.js:1204:12) at processTicksAndRejections (internal/process/task_queues.js:84:21) { response: { statusCode: 401, content: ‘{“code”:423,“requestId”:“7abeb918-03d0-46b6-b0d4-b9fd146d6b03”,“status”:401}{“code”:440,“requestId”:“55fcce02-9563-44d7-8572-82361aa4ba94”,“status”:401}’, headers: { ‘access-control-allow-headers’: ‘Content-Type, Authorization, Content-Length, X-Requested-With, X-Publisher-Id, X-Developer-Id’, ‘access-control-allow-methods’: ‘GET, PUT, POST, DELETE, OPTIONS’, ‘access-control-allow-origin’: ‘*’, ‘access-control-expose-headers’: ‘Content-Type, Authorization, Cache-Control, Expires, Pragma, X-powered-by’, ‘cache-control’: ‘private, no-cache, no-store, must-revalidate’, ‘content-length’: ‘152’, ‘content-type’: ‘application/json; charset=utf-8’, date: ‘Wed, 06 May 2020 02:00:02 GMT’, expires: ‘-1’, pragma: ‘no-cache’, ‘x-marketplace-version’: ‘1.0-’, ‘x-powered-by’: ‘Rocket Fuel and Rocketeers’, connection: ‘close’ }, data: null } }

Server Setup Information

➔ ±--------------------------------------------------+
➔ | SERVER RUNNING |
➔ ±--------------------------------------------------+
➔ |
➔ | Rocket.Chat Version: 3.1.1
➔ | NodeJS Version: 12.16.1 - x64
➔ | MongoDB Version: 3.6.14
➔ | MongoDB Engine: wiredTiger
➔ | Platform: linux
➔ | Process Port: 3000
➔ | Site URL: http://localhost:3000
➔ | ReplicaSet OpLog: Enabled
➔ | Commit Hash: 0a16a86bee
➔ | Commit Branch: HEAD
➔ |
➔ ±--------------------------------------------------+