Wordpress.com for Google Docs issue

1. Installed WordPress for Google Docs.
2. Uploaded a Google doc successfully to the WordPress site as a draft post.
3. Made a few edits - some minor style edits
4. Later, removed the post from the WordPress site.
5. Now unable to upload any new Google docs. The original shows "Update" - but fails because the original is no longer on WordPress.
6. Attempted to uninstall and reinstall word-press.com for Google Docs.
7. Now unable to connect from Google Docs to the WordPress site.
8. getting the following error
......Error

We're sorry, a server error occurred while reading from storage. Error code PERMISSION_DENIED.

[Please report this error](https://support.wordpress.com/)

The issue names no repository files, tests, or entry points. Start by reproducing the failed upload and reconnection flow described in the report, then inspect the Google Docs add-on and WordPress integration logs for the PERMISSION_DENIED response. Done means identifying the failing operation and restoring successful document uploads after the original draft is deleted.

Written by the indexing model from the issue text.