EN Phet downloads database but not storage

Debian 12 VM, kolibri 0.16

{
  "data": "<h1>Server Error (500)</h1>",
  "status": 500,
  "statusText": "Internal Server Error",
  "headers": {
    "connection": "keep-alive",
    "content-length": "27",
    "content-type": "text/html",
    "date": "Thu, 29 Feb 2024 19:37:30 GMT",
    "server": "nginx/1.22.1",
    "vary": "Cookie",
    "x-content-type-options": "nosniff",
    "x-frame-options": "SAMEORIGIN"
  },
  "config": {
    "transitional": {
      "silentJSONParsing": true,
      "forcedJSONParsing": true,
      "clarifyTimeoutError": false
    },
    "adapter": [
      "xhr",
      "http"
    ],
    "transformRequest": [
      null
    ],
    "transformResponse": [
      null
    ],
    "timeout": 0,
    "xsrfCookieName": "kolibri_csrftoken",
    "xsrfHeaderName": "X-CSRFToken",
    "maxContentLength": -1,
    "maxBodyLength": -1,
    "env": {},
    "headers": {
      "Accept": "application/json, text/plain, */*",
      "X-Requested-With": "XMLHttpRequest",
      "X-CSRFToken": "9AYnMExhEbCDQYlwG3uY5zufhtDGjDxhlnr3vmwZWCrEA2ATMwEkPqsVP2AwP2DH"
    },
    "paramsSerializer": {},
    "url": "/kolibri/api/content/contentnode_granular/197934f144305350b5820c7c4dd8e194/",
    "params": {
      "for_export": true
    },
    "method": "get"
  },
  "request": {}
}