MongoError: new file allocation failure [ufs: cannot upload file]

Description:

Originally, it was possible to upload the file, but it suddenly failed to upload today. This error is reported

Anyone can help me?

Server Setup Information:

version: '2'

services:
  rocketchat:
    image: ccr.ccs.tencentyun.com/tcb-100024104308-urur/rocket.chat:latest
    command: >
      bash -c
        "for i in `seq 1 30`; do
          node main.js &&
          s=$$? && break || s=$$?;
          echo \"Tried $$i times. Waiting 5 secs...\";
          sleep 5;
        done; (exit $$s)"
    restart: unless-stopped
    volumes:
      - ./uploads:/app/uploads
      - ./zh-CN.json:/app/bundle/programs/web.browser/app/locales/zh-CN.i18n.json
    environment:
      - PORT=3000
      - ROOT_URL=http://localhost:3000
      - MONGO_URL=mongodb://mongo:27017/rocketchat
      - MONGO_OPLOG_URL=mongodb://mongo:27017/local
      - REG_TOKEN=${REG_TOKEN}
#       - MAIL_URL=smtp://smtp.email
#       - HTTP_PROXY=http://proxy.domain.com
#       - HTTPS_PROXY=http://proxy.domain.com
    depends_on:
      - mongo
    ports:
      - 3000:3000
    labels:
      - "traefik.backend=rocketchat"
      - "traefik.frontend.rule=Host: your.domain.tld"

  mongo:
    image: ccr.ccs.tencentyun.com/tcb-100024104308-urur/mongo:4.0
    restart: unless-stopped
    volumes:
     - ./data/db:/data/db
     #- ./data/dump:/dump
    command: mongod --smallfiles --oplogSize 128 --replSet rs0 --storageEngine=mmapv1
    labels:
      - "traefik.enable=false"

  # this container's job is just run the command to initialize the replica set.
  # it will run the command and remove himself (it will not stay running)
  mongo-init-replica:
    image: ccr.ccs.tencentyun.com/tcb-100024104308-urur/mongo:4.0
    command: >
      bash -c
        "for i in `seq 1 30`; do
          mongo mongo/rocketchat --eval \"
            rs.initiate({
              _id: 'rs0',
              members: [ { _id: 0, host: 'localhost:27017' } ]})\" &&
          s=$$? && break || s=$$?;
          echo \"Tried $$i times. Waiting 5 secs...\";
          sleep 5;
        done; (exit $$s)"
    depends_on:
      - mongo

  #traefik:
  #  image: traefik:latest
  #  restart: unless-stopped
  #  command: >
  #    traefik
  #     --docker
  #     --acme=true
  #     --acme.domains='your.domain.tld'
  #     --acme.email='your@email.tld'
  #     --acme.entrypoint=https
  #     --acme.storagefile=acme.json
  #     --defaultentrypoints=http
  #     --defaultentrypoints=https
  #     --entryPoints='Name:http Address::80 Redirect.EntryPoint:https'
  #     --entryPoints='Name:https Address::443 TLS.Certificates:'
  #  ports:
  #    - 80:80
  #    - 443:443
  #  volumes:
  #    - /var/run/docker.sock:/var/run/docker.sock

No source files, tests, or entry points are named. Start by reproducing the upload failure with the supplied Docker Compose setup and investigate the reported MongoError and the mounted uploads volume. Done means identifying the cause and verifying a resolution for file uploads.