500 errors occurred when I was using the API

Hello, 500 errors occurred when I was using the API.

curl --location 'https://api.figma.com/v1/files/xxxxx/variables' \
--header 'X-FIGMA-TOKEN: xxxxx' \
--header 'Content-Type: application/json' \
--data '{"variableCollections":[{"action":"DELETE","id":"VariableCollectionId:555:23333"}]}'

The response result is:

 {
    "status": 500,
    "error": true,
    "message": "Error updating file, please try again later"
}

I remember a few months ago, this was working properly, and the query was normal.

The same situation applies when adding variable data, with a status code of 500.

{
  "variableCollections": [
    {
      "action": "CREATE",
      "id": "my_variable_collection",
      "name": "BRE_New_Variable_Collection",
      "initialModeId": "my_mode1"
    }
  ],
  "variableModes": [
      {
          "action": "CREATE",
          "id": "my_mode1",
          "name": "chinese", 
          "variableCollectionId": "my_variable_collection" 
      },
      {
          "action": "CREATE",
          "id": "my_mode2",
          "name": "en", 
          "variableCollectionId": "my_variable_collection" 
      }
  ],
  "variables": [
      {
          "action": "CREATE",
          "id": "my_variable1",
          "name": "bre账号名",
          "resolvedType": "STRING",
          "variableCollectionId": "my_variable_collection" 
      }
  ],
  "variableModeValues": [
      {
          "variableId": "my_variable1", 
          "modeId": "my_mode1", 
          "value": "张三"
      }
  ]
}

Thank you for your review. If there is a solution, please let me know. Thank you very much!