Metabase cannot find collection data

Hello. This is my first time using Metabase. My question is: Why Metabase can't load data from a MongoDB collection? I'm using the MongoDB Atlas driver and have already added the IP address in the network access option.

The collection has 5 documents. I tried using the sample collections, but it doesn't work. What should I do?

Diagnostic info:

{
  "browser-info": {
    "language": "es-MX",
    "platform": "Linux x86_64",
    "userAgent": "Mozilla/5.0 (X11; Linux x86_64; rv:136.0) Gecko/20100101 Firefox/136.0",
    "vendor": ""
  },
  "metabase-info": {
    "databases": [
      "mongo",
      "h2"
    ],
    "run-mode": "prod",
    "plan-alias": "",
    "version": {
      "date": "2025-03-11",
      "tag": "v0.53.6",
      "hash": "a8ca5db"
    },
    "settings": {
      "report-timezone": null
    },
    "hosting-env": "unknown",
    "application-database": "h2",
    "application-database-details": {
      "database": {
        "name": "H2",
        "version": "2.1.214 (2022-06-13)"
      },
      "jdbc-driver": {
        "name": "H2 JDBC Driver",
        "version": "2.1.214 (2022-06-13)"
      }
    }
  },
  "system-info": {
    "file.encoding": "UTF-8",
    "java.runtime.name": "OpenJDK Runtime Environment",
    "java.runtime.version": "21.0.6+7-LTS",
    "java.vendor": "Eclipse Adoptium",
    "java.vendor.url": "https://adoptium.net/",
    "java.version": "21.0.6",
    "java.vm.name": "OpenJDK 64-Bit Server VM",
    "java.vm.version": "21.0.6+7-LTS",
    "os.name": "Linux",
    "os.version": "6.13.7-arch1-1",
    "user.language": "en",
    "user.timezone": "GMT"
  }
}

are you using flex?