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Dropbox account disconnected: API error 'users/get_space_usage'

Problem

The plugin shows this error after the Dropbox account was previously connected and working:

Error in call to API function "users/get_space_usage": Invalid authorization value in HTTP header/URL parameter

Cause

The plugin has lost its authorization to access your Dropbox account. The stored access token is no longer valid. Common reasons include:

  • The Dropbox account password was changed.
  • The plugin's access was manually revoked from Dropbox's account settings.
  • Dropbox invalidated the token due to a security event on the account.

Solution

  1. Open the plugin's settings page.
  2. Click the account refresh button for the affected Dropbox account, or revoke and re-authorize the account from scratch.

Related

If the plugin frequently loses connection (not just once), the underlying cause may be elsewhere. See The plugin keeps losing connection with my cloud accounts.