Dropbox backup script not working

[icuzz]

Hi, 

I tried to use this script from https://kb.logicmachine.net/scripting/ba...e-dropbox/ It works fine, but the token from dropbox expired after maybe 50 hours. So how to fix this script? Here is the log 

* arg: 1
  * string: dropbox backup failed
* arg: 2
  * string: {"error_summary": "expired_access_token/...", "error": {".tag": "expired_access_token"}}
* arg: 3
  * number: 401
* arg: 4
  * table:
  ["x-content-type-options"]
    * string: nosniff
  ["content-type"]
    * string: application/json
  ["content-security-policy"]
    * string: sandbox allow-forms allow-scripts
  ["content-length"]
    * string: 88
  ["cache-control"]
    * string: no-cache
  ["x-dropbox-response-origin"]
    * string: far_remote
  ["connection"]
    * string: close
  ["x-dropbox-request-id"]
    * string: "had some id stuff I deleted this"
  ["strict-transport-security"]
    * string: max-age=31536000; includeSubDomains; preload
  ["date"]
    * string: Sun, 14 Sep 2025 20:01:05 GMT
  ["www-authenticate"]
    * string: Bearer realm="Dropbox-API"
  ["x-robots-tag"]
    * string: noindex, nofollow, noimageindex
  ["server"]
    * string: envoy
* arg: 5
  * string: HTTP/1.1 401 Unauthorized